Uh-oh. I've done most of these. But, I've finally figured out the secret to dealing with crushes and this kind of horribly awkward crush behavior.
So, all you people with crushes out there!
I'm gonna give you some fantastic advice that you might love! This will guaranteed help you with how to deal with your crush. Are you ready for this?! (Before I go on, this is just from my experiences and my own personal opinions. If you disagree with me, that's fine.)
If you like someone... then just tell them. Seriously, that's it. Tell them you like them. Don't try to act all cool about it, don't panic, don't act like someone you're not. Take a deep breath (then another one just in case), relax, be yourself, and tell them. Also, be honest with them about it. Don't over-dramatize your feelings ("I just met you but I'm madly in love with you! Will you marry me?!"), and don't down-play them either ("I guess you're alright or something"). If your crush makes you smile, laugh, brightens your day, etc. tell them that. Going by my own experiences, girls like that (and guys do too, ladies!). It's flattering to hear. Even if the feelings aren't mutual, it's nice to know that someone out there really likes you. Don't be afraid of rejection. If you are, you may never get your chance with your crush. You gotta take that risk! It may not work out, but you'll never know until you try. Don't be afraid. Take the risk. It may pay off in the end.