Woah I never noticed this but yea, when I am at my standing desk I shift from standing on one leg to standing on the other leg, shifting when my foot complains.

Woah I never noticed this but yea, when I am at my standing desk I shift from standing on one leg to standing on the other leg, shifting when my foot complains. (to address your yoga pose, just sort of half wrap the ankle around the back, doesn't require much/any effort for the second leg if you let the toe drag all the way down towards the ground)