Hi guys I have two beautiful toddlers, a boy who is 3 yrs 4 months and a 21 month old girl who is interested in learning some potty training, my issue is.. she is a very very private person and my 3 year old simply wont give her any peace he is shouting at the top of his lungs a running commentry of what his sister is doing, i can tell its making her feel uncomfortable , any tips?