You need to be able to see the person for it to work. If you are a beginner you may not want to try this spell, it can cause evil spirits to come, but this is one of the few spells that can be used by level threes so be thankful for that. You must only think about that one person and NOTHING else! Then you must imagine energy coming from them to you, if they stop right in there tracks or start to move slower it's worked so far. Now if you feel like something is shoving you back, they are magic.