Thinking about Grace pulling out the jazz hands when something good happens. Maybe quietly at first, hands just out of pockets, and it gets bigger the more used to it he gets.
Thinking about Grace, after years on Erid, tapping his hand or his foot twice when asking a question and not even thinking about it. It’s like breathing now.
Thinking about Grace canonically feeling uncomfortable the first time he has to go to sleep without Rocky watching.
Thinking about all the little eridian intricacies that would become reflexes to Grace overtime.