Me too. Grogu held onto Din's leg and looked at him. R2D2 rolls in, Grogu is interested, then Grogu says something back to R2 and R2 does a little happy dance and the Grogu puts his arms up to be carried by Luke. I imagine R2 was telling him it was OK and all the cool things he will learn.
I want Grogu to get fed up with training and tell Luke, You're not my father, I'm leaving. 🙂