When meeting a new person, what traits do you immediately look for?

[This user has not been convicted of 34 felonies]

In terms of their personality, at least. And let's just say this person is strictly someone that you'd be friends with, but you can include romantically compatible traits if you'd like.

For me, the first thing I try to find out is what someone's music taste is. It's a lot easier for me to hold a conversation about music with someone that I share common tastes with, and I love talking about music anyway. Next would be sense of humour, and then probably taste in literature/poetry.