This little bubble of mine

I watched a movie and it made me think, so i'll let you in on my thought shall I?
So, the girl in the movie said this: 'Everybody should go around with big signs on their chest saying what they are, like 'I'm a pervert' or 'I'm happy' or 'I'm a Christian'. It made me think..what would my sign be? It has to be the word that describes me, that people would immediately understand what I'm about. Maybe "I'm happy" hehe :D

Hmm xD