Tonight with your 5 to 8 year old
The prompt
“How do you like to move your body when you're really happy? Show me.”
What to listen for
If they jump up and demonstrate freely, they feel completely at ease expressing big joy physically in front of you, no self-consciousness at all.
If they do a small, quiet version, that's still a real answer, some kids express joy in quieter, more contained ways, and that's just as valid.
If they seem embarrassed, don't push a performance, ask them to just describe it in words instead.
What this tells you
How freely they show physical joy in front of you reflects how comfortable they are being fully themselves without holding back.