Leo has developed his closest relationship so far with my 9-year-old daughter. He likes the rest of us, but he really likes her. She was the first to pet him for any length of time and he hopped into her lap yesterday. We think the giggles did it. My daughter is a compulsive giggler, so all of Leo's interactions with her have been accompanied by that happy sound.
The rest of the family is trying to win Leo over by appealing to his stomach and sitting on the floor with him. We take turns giving him his eagerly-awaited green stuff and doing the other chores. We're all trying hard not to be pushy so Leo can make the first moves.