I'm terrible at not offending people I've just met. In person, I'm sarcastic, dry, and horribly blunt. Me and my friends constantly take the piss out of each other, and are rarely 'nice'. It's just the way we are, always joking around. We all take it well and take it for what it is. I forget that alot of people aren't like that sometimes. I cringe at some of the things I've said to people jokingly, then realise they don't have the same sense of humour as me.
The same. I hate that me and my buddies use sarcasm really often and really good because, when I'm with other folks, their faces go blank after I say something ridiculous.
I have to change my personality when I'm with different groups of people. I hate it, I feel like I have multiple alter-egos.