Tiggy, the cat, says hello in cat language! Her human says she does this when she's wants someone to acknowledge her then she stops when they do. Her human sat the camera down until she did it. She does this in the morning when she wants them to get up, in the night when she's bored and wants them to get up and when she's finished eating and want to know what room they are in.
(VIDEO) Tiggy the Cat Saying Hello