Try placing live meal worms on your hand and forearm. Then allow chick to investigate. Proceed in baby steps. Should take very little effort to get birds to fly some distance for the eats.
[VIDEO]
[VIDEO]
Some details to process in following thread.
https://www.backyardchickens.com/t/388547/training-chickens-for-voluntary-flight
[VIDEO]
[VIDEO]
Some details to process in following thread.
https://www.backyardchickens.com/t/388547/training-chickens-for-voluntary-flight