How are you setting examples for your clients or students?
I typically always eat at the tables in the main lobby and answer any questions as to why i eat what i eat and it often sparks conversations.
I also make time to weight train during the day when people are there. It puts me under the magnifying glass sometimes but that comes with the territory.
I use my experience of training myself and some difficulties or successes that have come along the way with clients to either give them hope, a push, or an idea of something they may expect.