well at least you went to check him out. that's how you do it. i got started on my path after meeting someone in a museum of all places. lolz.
Ya never know where you might meet someone with skills... or for that matter no skills! If no one goes to check someone's class out, then no one would have students. Plus the local YMCA taiji instructor may turn around and join your group to learn more and attend seminars that you've been exposed to.