Sitting on the floor formally polite manner, sitting in a t-shirt. No need to keep the feet but do not stretch the foot if the seat in front of adults, keep feet. Hand coordination is not classic sleeve.
The squat To sit in polite elongation not have to keep the foot. But do not stretch your feet if sitting in front of adults to keep the feet. Hands clasped together armrest
The squat to sit in the gentle stretching. Don't keep your feet! But don't stretch your feet if sit in front of the adults to keep your feet hands together. No armrest.