hi, i live in the capital of Bulgaria too
read this and get excited
http://wiwi.essortment.com/bulgariasofiaw_rvyi.htm ;)
very nice read
BoNgHiTtA is right, just don't act as some stupid tourist and you'll be fine, there's lotsa things you'll like, the girls are fantastic, you can get laid with as many chicks as you want... but you've should come in the summer, we have great beach resorts
anyway i'm sure you'll have a great time... if you know how ;)
good luck, if you need something my icq is 86056525