There are some buff/athletic people in the math/programming/science fields.

As an example, here is MathDoctorBob. If I saw him randomly down the street, I would have never guessed that he can teach math.

We are not boring. No we are not! Introversion doesn’t mean we are boring. Don’t even try to talk about that.
About Gesture/Look. It is really painful to sit in front of PC for long span of time.

I can relate with the introversion and sitting in front of a PC for a long time.