The game control to place the anvil depends on the version of minecraft. For java edition pc mac right click on the block.
For xbox 360 and xbox one press the lt button on the xbox controller.
How to enchant in minecraft with anvil. In this video we explain how to use the anvil properly and add potentially more than 30 enchantments to one item in vanilla survival even if currently the g. For pocket edition pe you tap on the block.