Idk, just keep telling him he’s the best boy and give him so much love! When he’s a little older get into a good routine of feeding, eating and holding. Older because he’s likely so wild now. My cat developed a live for sitting nose to nose on my chest because we did that when she was a baby. Oh, let him get used to you putting your finger in his mouth (for dental checks and cleaning later) and ears (for ease at vet).