My guild name is <I Am Not Botting> but I still get a lot of tells "r u botting?"
I hang out in Orgrimmar a lot on my druids, doing synchronized dancing and whatnot... when i toss regrowth and rejuv on one person so they instantly have 10 hots, they always get excited. Performing for a crowd always seems to make a lot of friends, and makes it obvious that you're doing it for fun. Performing obviously isn't for everyone, it takes a lot of coordination and you have to take the time to set up keybinds for different formations, plus if your computer isn't up to it you may get too much lag in crowded areas. ALSO, performing for the crowd often scores you gold! I've had people just walk up to one of my guys while i'm /dancing or something and throw 25g+ into trade. Another time, someone walked up to me and gave me 5 pairs of pretty good crafted shoulders!
Yeah, I still get people that say 'CHEATER' or 'WOW UR LAME LOL' but I tend to ignore them or /shoo them :P
seriously, the biggest thing is just communicating and responding in a friendly manner to curious people, and take all the negative comments in stride. you're not doing anything wrong.