The best thing is to be patient. Yes, he will likely become affectionate and love you.
I would give him a few days just to get used to your home and routine.
Then you could start by sitting on the floor in front of his cage and just talking to him. Don't look him in the eye too much though. If he shows any happiness behaviors like stretching or tail wagging, praise him quietly with things like "I'm glad to see you, too!"
Try the blink game. Keep your head sideways and if he blinks, do a long, slow blink. A scared bird won't blink. So if he does, he's not that scared.
Keeping your head sideways and smiling coyly once in awhile seems to work as well. It's a submissive way to flirt with the bird.
If he bobs his head, you might bob yours. Chances are he will stop and look at you, then do it again. So you do it again, etc.
If he sticks his tongue out at you, stick yours out at him. Birds love that game, too.
Try singing softly. As he comes around more, dance and sing. I haven't met a bird yet that doesn't like a human that will sing for it.
Work your way up to his taking treats from your hand. Once he does that, you are earning trust. Eventually you might see if he will let you touch him through the bars, although some birds don't like to be touched.
Once you have trust, you might try to see if he will step up, or at least touch your hand with his beak. Birds will test the surface before getting on, so let him touch you. You will know if you're going to be bitten, or if it's just investigatory. If you are bitten though, I recommend not reacting. Unless of course he is latched on and grinding. If that happens, push your hand toward the bird to get it to let go. Instinct tells us to pull back, but that's when a worse injury will happen.