we took every opportunity to hug them, kiss them...listen to them tell us about their latest drawings of dragon homes, origami creations, soccer games...watch them walk the hallway to their bedrooms without touching the floor (one foot on either wall ;-)) ...stuff like that.
As much as we try to "indoctrinate" them, their parents seem to have more influence...during a 'break in the action' when the kids could do whatever they wanted, they all chose to find a comfy place and read one of their favorite books on The Hobbit, Wildlife, Dragons, etc....not to say they don't enjoy some appropriate TV series...I'll stop here...not a good idea to get a grandparent rolling about their G-Kids...