What is this? how do we control it? and find more information?

ok so me and my friend when we were little used to play pool downstairs. there is animal heads on the walls we woulda always freak because they would start moving so we would go upstairs and then the paintings would start moving. here we are were both 14 now we stopped hearing and seeing everything until we met our friend of 1 year now. she was the same when she was little except he would actually see them. since us 3 hav became friends weve been feeling and hearing everything again. ex: i was in my room and in my mirror i see a flash of someone running i turn around and no one was there. i heard cds moving in the next room. i was supposed to b home alone. i turned around and with no one there the door closed. i stared at it wishing it to open and it did.] all the time i will feel a presense now or i will hear thing people dont. and nke im starting to see things to. my friends r the same. were all curious and want to know how we can get more information on this. and wat it is and to control it