why do spirits/entities click?

it is a common thing with them. when my lady first came to me. she used that form of communication to me.  there was always a pattern. she would click once then twice.  my guess it is a form of amusement.
you see when humanity  started talking  to the spirit realms. they would tell the entity or spirit to knock once for yes and twice for no. or vice a versa. clicking is a modern version of this.
when they do this; they are not trying to communicate with you. they like to play. its like a game of peekaboo for them. trust me if they have something to say. they will let you know. by communicating to directly through telepathy, dreams, by touching you. manifesting themselves in many ways.  and yes i had that experience. lol