After just having two funnies happen with the kids hiding I thought it might be cute to add that as a game they can play together. I think it would be soooo cute!

They could hide inside or outside...but if it's raining it may be best to keep them in or they could get sick...or, you could let them and it would be an added challenge to either stop them or heal them afterwards

Also, about playing train...it would be cute if they played together like tag in VV2