Oh, you have a Starbucks name? Whenever I have been at a Starbucks in the US I've always made up a name, usually an English version of one of my first names but sometimes something completely fictitious, because my regular first name (silly English language has no word for "the first name you are called by") is too unusual in an English context. I didn't know people from the US do that, too! (I hate that they ask for a name. It feels intrusive. I know that is irrational but it really bothers me. Almost as much as cashiers asking how I am doing. They don't actually want to know, it's an empty phrase, and again it is intrusive.)