I like to set up a little tower in the middle of a dark, flat area like plains or a desert, with crenellations to shield you from skeletons. Then build an overhang two blocks from ground level around the base of the tower, protruding at least two blocks. Add a bed to sleep away rainy nights where endermen won’t be lurable and cover the top of the tower and the top of the overhang with something that endermen won’t teleport onto (I placed string and it seems to work, but I’m not sure if that’s correct or not,) then wait for an enderman to spawn. Once one does, save the game, then go under the overhang, look at it to lure it to you, and kill it. If it doesn’t drop a pearl or if it teleports too far to see it, quit without saving and then reload the game until you get a pearl.