Is this kitten picky or just not hungry?

I just got a 4.5 month old kitten yesterday. He’s very sweet and playful, but despite his show of energy, he doesn’t seem to be eating much. When I asked the lady at the humane society what to feed him, she said any kitten food. She wouldn’t even recommend a brand. I had a tabby for nearly 19 years who just ate Western Family dry food, so I figured I just get their kitten food, but Shadow doesn’t seem to like it like Mitsy did. I was feeding an adult stray for a while until the neighbor took her, so I had a few cans of wet food left and he’s liked that, and keeps asking for more. I figure I can go buy more of the same stuff but specially made for kittens, but how much should I give him per day? And should I try a different dry food, too? I’d like to leave out dry food for him if possible, since my afternoon/evening schedule changes and I don’t want him to have to depend on being fed wet food each night, too.

Also, he’s been getting very agitated when I and/or my husband eat(s). He thinks he just has to have some, too! I don’t want to make him ill, nor start a bad habit, but he gets so annoyed and keeps jumping on my lap and to the table. Is this because he’s hungry since he won’t eat his own food, or is he just feeling left out? Any recommendations on what I should feed him and how much would be great!

On a side note, my husband insists that Shadow not be allowed in the bedroom, but I worry about the poor kitty. Hubby wouldn’t let me sleep downstairs with the cat last night, despite his being so new to the environment, and I think he just hid behind the desk the whole night. Hubby has allergies, so I don’t blame him, but is there anything I can do to help Shadow? I don’t want him to be frightened when I’m not around. After last night he won’t leave my side.

Sorry so many questions! The only other kitten I’ve had was Mitsy when she was young and I was only 7 myself.