You still handle them in order to clean the tank and such. I put mine in a tupperware container with ventilation holes and put a rock on top of the lid. Its also recommended to do minimal handling until they eat three meals for you. Their willingness to eat is a better measure of how secure they feel than time. I think I waited around 10 or 12 days before I fed my first bp after shipping, and three days after picking up my second. Poking their head out is a good sign that they're hunting, but since you got him he could just be looking around. I would wait at least a week, but if a few sooner than that and he's not showing any signs of being stressed you could try it if you really want to. Congrats on your first snake.