Enlighten Me, Please

For anybody out there who knows Latins or Spanish guys: Is it just me, or do they think with their penises 100% of the time? Or is the word "intercambio" (language exchange or tandem in German), actually a ruse used by men to look for dates, girlfriends, and sex partners?

Doing this intercambio thing in Barcelona almost has a feel of a blind date. Really, looking for the perfect "language level" match, anxiety whether you guys would get along, and the whole "did he/she like me?" question.

I mean, two guys I'm doing intercambio with think that I am into them. Yuck and double yuck. They interpreted completely innocuous things I've done as attempts to seduce them.

Upside is, I am learning the best places to go to here. And my Spanish is getting better.