[Merle]

I'd say give your hamster a bit more time! Usually you leave your new little one alone for at least a few days after bringing them home, so they can settle in and get a feeling for their surroundings. It might be a bit early to expect him to climb onto you happily. Taming can take weeks or months sometime and it all depends on the individual hamster.

But don't give up and keep trying, he'll come around and get used to you over time!