Sitting Posture

I’ve noticed that the longer a game session goes on, the less i’m actually sitting. I start standing to set-up combat and move minis, but soon just remain standing rather that return to my seat. Because I’m just going to pop back up as soon as more action occurs, I just remain standing. So my brain has learned to associate standing with exciting action, and even in roleplaying sessions my butt tends to make slight lift-off.