I tend to be at my most serious with people I don't know well. I do think about big issues and analyze them and have serious conversations about it, and I work really hard at what is important to me, but strangely enough I'm not intense socially. I am significantly more laid back than most people I know.
I tend to hide my silly side from people I don't know well, but will mirror anyone who has a silly side. I teach music lessons to some little children and don't have a problem being on their level, and I can get just about any animal feeling so silly they don't know what to do with themselves.