Well, as a signing n00b I was guilty of being a "i know sign" person. It was all so exciting, and I wanted to practice on as many people as I could! Luckily, the school I went to was at a deaf community center so the folks that went there were used to us n00bs and tolerated our attempts at speaking their language.
You said that your deafness was a 'born, not broken' thing - and I know you can't smell. What disorder do you have? (hope that wasn't too forward, I'm genuinely interested!)