What he says is: "I have decided to grant some of your wishes."
Wow! You didn't expect that. But this is so cool! The possibilities are endless! A real genie to grant your wishes and make your dreams come true! How great! You're ready to blurt out everything you can think about but first you can only say something quite simple.
"You... You really mean it?"
"Naturally," says the genie. "It was nice seeing the world and what your living place had to offer. You are not a bad person, as far as mortals go. And I do feel a tiny bit guilty at forcing you into my vessel. So what sort of wish will it be for a start?"
He lounged on your couch and his eyes are twinkling. Yet his wide smile is more of a smirk. But... Wishes! You head os spinning with all the life-altering dreams you can achieve with a literal snap of your fingers. Or rather the genie's. But still! You could as to be a be a chick magnet or to be an incredible wealthy and successful person. Yes, money and sex. Those two sound very good. Not very original, granted, but very classic in them being satisfying. However, you do remember that this genie clearly cannot be trusted. You are going to have to be careful here. Big risks but big rewards, clearly. Should you let this unbelievable opportunity go? Of course not.
"Well?" says the genie impatiently. "I am immortal, true, but I don't want to waste my eternity waiting for you to take a decision."
"All right, all right," you say quickly, not wishing to anger him. "I know what I want."
"Oh? Wish away, then," says the genie with a toothy grin.