Austin started taking McKenna by the hand and leading her to play in different parts of the yard. At first she resisted being led and then she started asking to hold his hands.
And then they started giving each other unprompted hugs...and with the hug recipient actually enjoying it!
But their favorite thing to do is to sing and dance together. All the time! We do lots of Ring Around the Rose and lots of dancing to whatever song comes on the TV.