You've only had him 2 weeks. Chams don't do well with change and take a long time to adjust to new environments and people. Don't rush things or he's never going to get used to you but don't be surprised if he never likes you or wants to be handled. Chams are look at pets, not play with pets. Some species tolerate it better than others, like panthers, but veileds are notoriously grumpy and antisocial. Especially males. My female veiled tolerates me looking at her and she will hand feed but my male is extremely aggressive. Disappears deep into his setup so I can't see him as soon as I walk into the room. He won't eat in front of me, let alone hand feed and he bites. Granted they're all individuals but they do view us as giant predators and in my experience they don't want to interact with us. I also think you should make him feel as safe and secure as possible in his home so he's not feeling stressed all the time. To do that he needs a lot of climbing branches and I mean a lot, cham highway all up and down throughout, and so many live plants to create a jungle look. You shouldn't be able to easily find him in there.