There are a number of tips that all fashion experts know about how to look proper.
#1 Don’t wear a stupid hat.

This is Stan. Stan is doing the wrong thing.
#2 Do wear a collared shirt, especially if you are drunk.

Luckily, a team of haute couture aficionados intervened. They gave Stan a stethoscope and a white coat, so now he looks less like a cross-dressing drunkard and more like a doctor.
Which he is not.
#3 Go for brand names.
Stan wears $0.99 pants from a nondescript local market and a $10 red shirt from Kmart. He won his glasses from a neuroscience student in a bar fight.