Vendors in Bangladesh, where I grew up and where my family is from and where I look like I was born, try to rip me off the second they get the slightest inkling

Vendors in Bangladesh, where I grew up and where my family is from and where I look like I was born, try to rip me off the second they get the slightest inkling I'm American. Very little to do with skin color, it's just most often the biggest giveaway that the buyer is a foreigner.