It depends on how the player interacts with the elements. For instance, if dragging&dropping is used to play the game, tapping on the elements could be used to show additional options or tooltips.
That said, it’s quite hard to give any concrete suggestions without having more information about the game itself
So my game mostly tapping used to control the UI, so if user tap something, basically it (mostly button) should be clicked and do something related game play.