Our chooks where a little bit cheeky and prefer to put their heads through the fence and drink out of their water container. I moved that away and taught this group how to use the nipple drinker. I found it very easy just hold the chicken open their beak and put the piece that looks like a tongue in their mouth and push the beak against the nipple. Repeated two or three times and then put them down I only needed to do a couple and next thing they where back over at it using them. So I recommend keeping an eye on them and if they are not using them you may need to do the same.