Your reaction with the crowd and comments you make are clearly determined by the reason for/situation of the troop and the people involved. I'm usually pretty "serious" when need be, but around the kids I usually play it by ear. If I need to be goofy to help a kid not be so timid or scared, so be it. At the St. Paddy's Day parade here, a very nice looking (and slightly inebriated lady) wanted her picture taken with me. She leaned in a said, "Wow, you look awesome!" and I said, "So do you!" Along the parade route, we were helping collect money people were handing to us for the Children's Hospital. I reached out for some money and the girl pulled it back and said, "No, you have to dance for it." Of course I obliged by shaking my groove thing. People cheered and got a good laugh. When indoors, I have kids ask if my gun was real and I would say yes. Then they would ask me to shoot it, and I would say No, someone might get hurt, or I don't have the money to replace the ceiling/windows. And of course, if I had a dollar for EVERY TIME someone said "Aren't you a little short for a stormtrooper?" I could starting building a few more kits.