I am the same all around.
Here I am more talkative (typing) and basically I am the same person.
Um...to tell you the truth, I (for some reason) talk in a higher pitch to adults in the "outside world". I am more polite and neater outside, but if I know them, then heck, I'm going back to the real me, not as high pitched voice as you think, not clean at all, and, well, yeah...
Nope. I am me everywhere I go.