That awkward moment when you say 'hi' to someone but you aren't sure if they heard you. And then they say 'hi' and you can't decide whether or not you should say hi again in case they didn't hear the first one and you just give them a weird panicked smile.
You'd better wise up, Pony... you get tough like me and you don't get hurt. You look out for yourself and nothing can touch you, man. — Dallas Winston, The Outsiders