Ahh boys and their toys :P

The tip will probably be red as his foreskin will still be attached to the head/shaft I believe it will eventually retract on its own so make sure you dont force it as this can cause pain and infection.....I like MN idea let him play and explore but always wash his hands and do it privately......my DS often strips off and sits watching tv palying with it we just ask him nicely to stop playing with it and if he wants to keep exploring go into his room. Good luck x