I call myself Goku and think of myself as Goku.

[Obviously!]

There's another Goku here but he's older so it's not really the same. Isn't it easier that way? We all already have names that say who we are, why do we need more words for it? We can just use our names... And 'people'! People is a good word for talking about lots of... Uh, people.

[Okay that didn't sound too well even for him.]