I just wrote about, excuse me, ranted about my introversion in a post a few days ago. I like very much "fluent in silence." What a great turn of a phrase. I've gotten the "you're too quiet" more than I'd like to remember. I used to let it bother me until I realized it was really them saying, "I feel I'm not interesting enough to peak your interest, and that make me feel insecure, so I'm telling you that you're too quiet."