COUCHSURFING EXPERIENCE No "official" CouchSurfing yet, but I have done exactly the same thing several times, just without getting to know each other via couchsurfing.org.

Don´t know if I´m a good teacher at all. Anyway, I can cook some vegetarian stuff for you, if you like :-), and try to teach you some German (Can you say "Streichholzschächtelchen"?).