If it seems like my message isn’t getting across, I try to communicate it in another way. A lot of this can be mitigated by determining up front how committed an exerciser actually is to adopting an exercise program.
Introverts can be successful. I’m an introvert, and fitness is my career. As Karin mentioned, we are always being watched when we train. People watch who I train, how I treat them, and what we do.
I try to do well, quietly but visibly.