You are able to use water to communicate with another creature that is within the same plane of existence of you and you are familiar with. This creature must have access to water around them for this spell to work, as it uses the water around them to create the connection. If a creature does have access to water but does not wish to be contacted then they can make a Wisdom saving throw to not be contacted.   When casted, the water around you will float mid air before turning into the head of the creature you are contacting. This is the same for the recivicer as they will see your head made up of water. You are able to hear and see the creature clearly, allowing one to see emotions through the movement of water. Should either of the creatures involved in the communication wish to end the spell early they can swipe their hand through the water head