columbian boa

Question
im not sure why snakes bite..but i dont want mine to bite me..iv had mine for about two weeks and it seems tame but i would like more tips on how to take care of him more...and be very playful with him..

Answer
Almost every snake I've ever had no matter how tame has atleast once bitten me even if by accident eventually in it's lifetime.  Snakes are still wild animals nowhere near as domesticated as cats or dogs bites will most likely happen eventually unless it's a calibar python or rubber boa or something along those lines.  As for playful again it's a snake not really sure what you're looking for when you say you want him to be playful.