Stupid question about what people wear here

Boat shoes, seersucker pattern clothing. Do they a make a person look like a mainlander? Specifically the East Coast? I am from there originally but do try to dress put together while still trying/attempting to fit in. I realize that as soon as open my mouth and probably even before that people already know I am malihini. Am also sure that people might just tell me to wear what I want too but really want to know what people think. I already have a small collection of slippahs ( including a few dressier pairs) just trying to find something dressier.