Depends who I'm hanging out with at the moment.
With one of my friends, we'll call him T because I'm not sure if he'll appreciate using his real name, we talk a lot about music and life. If it weren't for me, he wouldn't have found Ratatat, Sage Francis, or Larry and His Flask.
With another friend, let's call him CL for the same reasons above, we talk about the most random shit ever, whether it's music, movies, life, or our ever shrinking insanity. Oh, and webcomics. We like webcomics.
With another friend, we'll call him CR because of the same reasons, we talk music and school and get lunch together. We're also drummers. So we're pretty damn awesome.
With my other friend, I'll call him J because... well, do I really need to say it? We don't talk much any more, but we still keep in touch every now and again. He's the only one I talk and play games with. We also love Homestar Runner. Who else remembers that shit? We do, damn it!