I 100% suggest leaving the snake alone until he is eating. Literally Pretend he's not there except to spot clean and change water.
Make sure husbandry is spot on, make sure proper hides and security are offered and avoid temptation and let the snake acclimate. I personally don't handle any new snakes, especially juveniles, until they have eaten three consecutive meals without refusal. Poor husbandry and stress do to handling are the main reasons a snake will refuse food. Getting your animal eating should be your top priority.