Make sure they have enough room - put a branch in there for them to roost or get up on. Meal worms are great treats and make them very happy to see you! I always talk to my chicks when I am around - they know your voice and will come when you call (more so when they get older). As they get older you can offer different treats. I always give my older chicks alfalfa hay to pick at - they love it and it gives them something to do and is very healthy - you can also pick short grass and clover for them depending on where you live - No long or stemmy grasses. Good Luck!