The move is stressful - give him a week to relax before handling. Don't handle within 2 days of feeding.
As mentioned, if he kind of rears up at you then definitely use an empty paper towel roll to just touch him on the head - it will put him from strike mode into ball mode. Never reach straight at its head. Grab the snake from behind and very gently. If he just hisses or puffs up when you touch him it's fine. If he whips his head around toward you, use the paper towel roll again. Be calm and relaxed and so will he. The bites honestly don't hurt, they're just startling. Just be prepared for it and if it happens you'll see that everything is still fine.