Once my son and I leave the house in the morning, we walk to the car, and I put my work bag, and his diaper bag in the car. Then I fasten him in the car seat, put his toys in there with him, kiss him on the cheek, and close the door before walking to the driver's side. The look my son gives me as I walk away, is one of sadness and confusion as if he's saying, "What the hell are you doing to me man, and why are you leaving me?". For that reason, once I get to the driver's side and start the car, I usually reach back and touch his leg to let him know all is well. Then I tell him, "Ok we're headed to daycare buddy", and he says nothing back in return--although one day he will.
When we arrive at daycare, I go around and get the diaper bag, and then I get to Nyles' side of the car, and the look on his face is completely different. First he looks up at me as if he's startled, but in seven seconds or less, a big smile comes over his face and he starts kicking his legs with pure joy. Of course, he normally loses that smile as I'm trying to take him out of the car seat, because I usually try to do so without completely freeing him from the car seat straps. Still, once I pick him up and hold him again, he's fine.
But that moment when I walk up to the car, and he's smiling and kicking? THAT is the best part of my day..until I see my wife naked of course, but that's a separate entry.