I'm an American.
That is something I use to define myself. We learned about it last year in AP, we define ourselves against certain things to see what we are not so we know what we are. I don't remember the word, but the definition stuck with me.
To be an European for a day would be interesting. So many accents to choose from and plus you are loved by Americans no matter what. Say something with that accent and you have them, seriously, at hello.