Have You Had A Problem At The Border?

Presenting yourself as a business man and entering on a tourist visa seems a bit counterproductive to me. For tourists on tourist visa it's probably easier to go through unquestioned looking like a slob. When they see me they think nobody would ever hire something that looks like me..so they know im not working. Thus they let me through without questions

or, at best, an English Teacher

on another note, regarding personal appearance, I suppose it would be better to be looking over 60 years of age, as you would be presumed to be living off a pension, vice working.

Actually, I do not see it one way or another. We all have an occasional hangover/bad hair day/wardrobe faux pas day. When you are at the Immigration window, they do not scrutinize your shoes, nor see if your shirt is tucked in and your trousers are creased. Perhaps they do recognize nervous hands/behavior, and look more closely at your visas....but I doubt that. I think they verify your stamps/visas for validity and frequencies....not so much your haircut or choice of wardrobe for the day.

I've read that some airports have unseen eyes watching the lineups.