Update: I can now do this with sides of my feet rather than one foot flat. Still have to lean forward quite a bit
After being ridiculed incessantly by my 70-something mother in law, I put some work in and was able to stand up from the lotus position without using my hands. Yay me! How about you?

Some pointers:
-take off shoes and socks
-sit on the grass cross-legged (right foot in front for me)
-lean forward quite a bit
-push up with left foot, a bit flat to the ground (not on side of foot like this guy)
-right foot helps keep your balance

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