I try to keep things light. I give close calls and compliments when deserved. I'm here to have fun and when I have fun, I usually win. I'm not a professional, but I am still serious. I am also serious about having fun when I play.
I don't need a game face to do well because I let my racquet do the talking. I think its harder to beat a nice, friendly guy than a jerk. So, why not be extra nice?
My role model would be John Newcombe or Roy Emerson for competitive spirit. Play hard, but fair.