I love to meet new people. I'm very shy at first and will pretty much just sit back and watch for a while until I get the feel for the people I'm around. Then I get a case of social anxiety and my mouth filter disappears and I just say shit. For instance, standing in a bar with two new friends talking about haircuts:
"I'm thinking of growing out my hair. I need more hairpulling in my life."
I managed to play it off as a joke, but the brain to mouth filter just doesn't exist. People who really know me don't usually mind.
I kind of figure that if people still like me after they get to know me when I'm all stupid and nervous, they're awesome people.