I have one thing I really cherish about friends; trust. Knowing you can trust each other with the truth, leaving lies behind, feels great. I'm not saying I've never lied, but I do my best to be honest and, to a trustworthy person, open. So just tell me what you really are like, I won't judge :)
Also, I do not accept friend requests from people I don't know. And I don't like answering to short messages, like "Hi. How are you?", either. Just tell me something about yourself and you're certainly grabbing my interest much better :)