-Threadhopping with this character - yes, no, or what?:
Go for it. He's likely to jump around a lot himself.
-Hugging this character?:
Yeah, sure, if you want to. He kind of smells though, so I don't know how well that'd work out XD
-Giving this character a kiss?:
Suuuuuuuuure. You might want to spare him a breath mint or some toothpaste first though.
-Punching this character (provided they are given an opportunity to fight back):
If you'd like to. He's sure to set someone's temper off eventually. You should be pretty cautious about that though, he's not about to give a fair fight. While you're intentions are to engage in a fist fight, he'll be more concentrated on fucking with your mind.
-Is there anything YOU DO NOT WANT MENTIONED near this character?:
WELL! He'd certainly appreciate you refraining from shouting his name repeatedly around the island, but that doesn't mean you can't do so. If your character wishes to summon or rid of him, by all means, they can. He just won't be to happy about it.
As for the fact that he's a fact that he's a fictional character, if you'd like to, you may share that with him. Teasing or acknowledging the fact that he's dead is also cool since he'll be doing so a lot himself. Death isn't a touchy subject.
-Is there anything you need us to KNOW about interacting with this character? Special physical features, fighting abilities, STUFF:
Check zee post bellow this one for powers and weaknesses. Other then that, during a fight or mind fuck, I'll usually ask for permission when working B.J's powers.