Once your parakeet is hand-tamed and happily uses your hand as a potential perch, you can hand-feed him.
A tame parakeet will soon be feeding from your hand
Note: Hand-feeding is fun, but isn't necessary. A tame parakeet will hop onto your hand or fly to you whether or not you’re holding food.
Hand-Feeding Baby Parakeets
Young birds can be hand-fed, but this is a tricky job, and should only be undertaken by an expert breeder. Hen and cock parakeets are the true experts in this area, so leave it to them wherever possible. As with any other young animal you’ll need endless patience and know-how if you’re to successfully stand in for the parents.