Did you know I completely change my accent depending on who I'm speaking to?
Wow, how do you keep them all straight?
It's easy, I just fake another identity when I'm with someone new. It's like being a character in a play.
You shouldn't lie about your accent. Eventually you'll forget which accent was which and get caught.
A trip to a new town may be in order!
What you're doing sounds fun, but when you keep it up over time, that's something else. Sooner or later you'll run into two or three of these people at the same time and you'll find yourself in a real sticky wicket!