what would do if there is a ghost in ur room

That completely depends on the type of ghost that would be in my room. If it's a quiet ghost that doesn't try to bother me or my stuff I would be able to live with it. A ghost that likes to make sounds in the night would probably freak me out and it would have to go...or I would have to go in any case.

maybe I will run, and pray to GOD so I wouldn't be diturbed

I will never want this to be happen to me unless if the ghost is a good ghost. Even for the bravest person in this world, he/she will surely be freaking out. I might scream and faint at the same time.. lol.. don't you think so?