I've gotten the parents to tickle the kids, but today the kids all got together for a giggle party. That's the first time I've seen that. I was trying to see if one child would tickle another, but ended up with all five in the kids room giggling. How cute.

I also discovered I can get the kids to play train together and if you get three of them playing train then they all gather for a giggle party. Too cute.

They really are cute aren't they? I remember the first time I saw them doing that I stopped what I was doing just to say "awww"

There's a topic about everyone's favorite children actions here:
Favorite childrens actions

I like when they play train and one of them gets late to join the others and keeps playing train alone.