Don't rush him. It may take several weeks for him to settle and want to know you. Think of it from his view. You are a stranger, he doesn't know if you will hurt him or even eat him. He doesn't recognise anything around him. You have to gain his trust.
So sit as near to his cage as doesn't frighten him. If you frighten him you go back to the beginning again so you must go carefully and learn patience. Talk to him lots, read out loud while he watches and listens. If he approaches feed him a treat, it will be trial and error to find what he really likes for a treat.
You don't tell us how old he is but be prepared for him to regress a little with the shock of leaving his former home and all he has known. Tell us what you are feeding, how old he is and your previous experience of birds. Lots of folk here will help just hang in there.
Rule number one - step back, don't frighten him. just because he was hand fed doesn't mean he will automatically come to you. Is he properly weened if he is that young? More info will help us to help you. Welcome.
He is currently in the living room, and there are kids running back and forth all around his cage(they are kids being kids...) could that cause a problem?