Having a crush can be a wonderful and exciting feeling. But do you ever notice how silly people start acting when they've "got it bad"?

Here are some of the dumbest "I have a crush" behaviors:

• Showing up somewhere where you know your crush will be, but pretending you just bumped into them.

• Reading your crush's horoscope.

• Snooping on his Facebook page and his family's Facebook pages.

• Practicing your signature with his last name.

• Agreeing with everything your crush says, and developing interests solely because he's into them.

• Over-rehearsing conversations and scenarios in the mirror ... with yourself.

Obsessing over him when he isn't around, but completely ignoring him when you are in the same place at the same time.

There are few things more aggravating than when your friends and your boyfriend don't get along.

But it might not be as simple as clashing personalities. It could be because of a few other reasons, like ...

• It's your fault. If you don't want your friends to hate him, stop talking smack about him.

• Your friends are right about him. He's not a good guy and you're the only one who doesn't see it.

• They're actually angry at YOU. He's no good and you chose him.

Jealousy. Each wants to be the center of your world and there's only so much you to go around.

Hookups, like people, come in all shapes and sizes. Here are a some of the different types of hookups ...

The Blackout Hookup. You only realize there was a hook up in bits and pieces as you remember it the next day. If you're lucky, you left in the middle of the night and were still kinda drunk after the cab-ride home.

• The Anticipated Hookup. This is the "Tonight Is The Night" hookup. You shaved. Your undies are cute. Protection? Check. It's gonna happen.

• The Idle Hookup. It's late and you're both bored. You've probably been drinking. "Uh... why not?!" Just don't develop feelings ... or guess what hits the fan?

• The Revisiting It Hookup. You had fun once -- so you do it again ... and again. Hopefully, you are both on the same page that it's just a friends with benefits thing.

• The Begrudging Hookup. Meh. You aren't psyched nor upset, but rather than entertain the idea that you're too picky or make bad choices, you go ahead and give it a shot.

The In-Love Hookup. Some say it's the only way ... others say it's a unicorn.

While there's certainly a lot -- A LOT! -- about women than men don't understand, there are also a few things about men that totally confuse women.

Here are some of those few things that men love that women just don't understand:

• NFL Sunday -- There are a few women out there who watch the games, but guys take the whole thing to a new, religious level.

• The Lives of Athletes -- Women follow the lives of celebrities. Guys follow the lives of athletes.

• An Utter Hatred of Shopping -- Guys can't stand the standing, the waiting, the looking around for crap. Men see it as a complete waste of time.

• Golf -- While golf is very boring to watch, it's a very skillful game, which is what hooks guys. It's impossible to master and keeps guys coming back for more.

When it comes to flirting, it's good to be armed with the right weapons. Here are some pick-up lines sure to get his attention ...

• "What cologne are you wearing? You smell amazing" -- This is extremely flattering and intimate at the same time -- it's also a great way to start a conversation.

• If you are at the gym ... "Can you show me how to use that machine you were just on?" -- Guys love to show off their expertise, so asking him for help will make him feel appreciated. This also opens the door for you to talk later, you now know each other!

• If you are at a friend's party or out with a group and you don't know him ... "How do you know (insert friend's name)?" -- We are all naturally attracted to people with similar interests, and letting him know that you share an acquaintance subconsciously makes him feel connected to you. This is also a perfect icebreaker.

While most guys will tell you they try to be honest with others -- and themselves --the truth is being honest is tough.

There are a lot of lies that guys need to tell themselves just to get through the day, such as:

• "I Can Afford That" -- You NEED that flatscreen TV right now, don't you? Just finance it! You can afford it!

• "I Can Definitely Get That Girl" -- Any guy can score any girl. It just comes down confidence. Where does that confidence come from? A tiny little lie starts it all.

• "I'm Not Going Bald" -- Embrace the chrome dome. The worst thing you can do is try to cover everything up.

"I'll Never Need to Know That" -- In high school, you could blow off algebra because you knew you'd never need to know that. In real life, there are a lot of things you cannot let slip -- like how to do your taxes or how to write a great resume -- or they'll end up burning you.

If Valentine's Day taught us anything, it's that people use Facebook to profess their love. And on non-lovey-dovey days, people have turned to Facebook to complain about their significant other. Here are some "rules" when it comes to Facebook and relationships ...

• Don't put up that you are "In a Relationship" on Facebook before six months of dating. You don't need to let the whole world know yet. You can put up photos and write on his wall to show that you are together, but hold off on changing your status.

• Definitely don't use Facebook to break up. This is wrong, wrong, WRONG! Do not break up via Facebook or change your status to tell someone that you are over the relationship.

• It's NOT complicated. The "It's Complicated" relationship status is not helping anything. You will only get questions. Keep all that info off Facebook.

• Single needs time. Yeah, you may have broken up, but wait roughly a month before putting "Single" as your relationship status. If you want to tell someone you are now single, send them a private message.

Feel free to delete. You can un-friend your ex if you find that you are going to stalk him. Take away the urge to check up on him too much.

All guys know that generating attraction is one of the most important parts of having success with women. It's the difference between having her moving toward you -- and you fighting an uphill battle to close the deal.

So, flirting is the name of the game -- and here are the most devastating flirting mistakes you can make:

• Lacking Confidence -- Your confidence is the number one thing you've got going for you. If you're lacking in confidence, you can start by pretending to be confident, and eventually you will be. Just fake it 'til you make it.

• Lying -- While you can exaggerate or even lay out a "creative" version of reality, you can't flat out lie. Not only will it eventually torpedo your chances with her, news will spread to other women that you're not trustworthy.

• Talking About Your Ex -- Never, ever, under any circumstances, discuss your ex. Ever. Nothing good can come of it.

Hanging On Her -- Think of it like a boxing match. Get in there, flirt a bit, and then back away. Don't worry. She knows you're there -- and she'll make her way back to you if she wants more.