Andy is standing often with my help

I try to have Andy stand and take steps as much as I can. Even going to get a drink of water I had Andy walking in front of me. He likes it best for me to be behind him and not in front. He doesn't like me to hold his hands so I hold his elbows or upper arms. I am standing behind him here in this shot. 

If there is a chance for him to be on his feet and not playing on the floor, I have been very motivated to do it. I can tell he is benefitting from it and stands stronger each day. His appetite is also very high. He is quite hungry at home and at school. He is growing and getting heavier. It might also be because of all the activity he is doing now, instead of just lying on the floor too much.