Who are the people who want to be my Facebok friend?

I mean, seriously, I'm all for Facebook. But you can't just click a button and expect to be my friend. Just like I will not connect with you on LinkedIn if you if I hate working with you (yes, I'm talking to you, guy-I-hate-working-with), I will not be your Facebook friend if I don't like you. 

Hint: I like people that send me Facebook messages. I'm not sure about the poke... it tickles.