mate with all my dogs i control them with their food from a young age
at feeding time i make them do something for their food ex/sit
lay down, wait, stay and so on and i always make sure the make eye contact
with me and dont break it till i let them feed and as they get older get them to
jump and whatever else u need them to do like sit them at the end of the garden
and call them in for their food.
then after that i start throwing a ball for them not a lot just a bit and then coming
along should in theory come naturally.