I owned a house that used to be a church and it was profoundly haunted, i always thought they could not speak but this is not the case, most of what they did was to scare you, but sometimes it would be in a lighthearted manner and was legitimately funny even from my perspective and if i laughed they would too, it sounded like as many people as you would have in a movie theater laughing, they can manipulate physical objects, mostly i tried to ignore them and pretend i couldent hear what they were saying because it was just to scary at times, i installed a bunch of motion detectors as a security system and everything went apeshit after that, i had this one ghost that when he spoke it would echo and even shake the house, i couldent deal with it and just ended up abandoning the house as nobody wanted to buy it. They obviously were having a great time at my expence, i never did try to have a conversation with them because it was just to freaky and seemed a bit hostile since they were trying to scare not just me but any guests i had as well.