With my best friends, I'm usually very random, annoying, and I'm laughing at everything when it's not even funny.
With regular friends, I'm quieter, not as random, hardly annoying (that's whta I like to think) and laughing at stuff that's actually necessary to laugh at.
With my my family, I'm not quiet at all, but I'm defintely not random. I just talk about stuff that they probably want to know.