why when a basketball play fall they lay on the floor and wait for someone to help then up
I would guess that they need to get checked out by a trainer or the like before getting up. They may need to get up a particular way or have help getting up or even getting off the court.
Cuz they can't get up or they're hurt
some I think they do it just for attention and some are really hurt.
wear stilts that make you. 6'8 then ask
There either really hurt or want some attention. Mostly I think it is for the attention.
waiting for a foul
Have you ever seen them try to get up by themselves....it's like watching a flipped turtle....but funnier (for us, not so much for them)
The key word here is help ,and you answered the question yourself