Have you setup Nostr Wallet Connect with Alby or Mutiny wallet. It'll let you zap other people
Discussion
I have nostr:npub1getal6ykt05fsz5nqu4uld09nfj3y3qxmv8crys4aeut53unfvlqr80nfm invite codes if you need one.
He'll def need one. He's not zappable yet. I doubt he's setup a wallet