One of the most common places that people use suction cups is in the bathroom on tile walls. There are a few different ways that you can get suction cups to stick to tile. The first way is to make sure that the suction cup is clean. If there is any dirt or debris on the suction cup, it will not be able to create a seal and will not stick. The second way is to wet the suction cup before you try to apply it to the tile. This will help create a better seal. The third way is to use a little bit of soap on the tile before applying the suction cup. This will also help create a better seal.