How do we know they are sad?
.
How do we know they are sad?
.
How do we know they are happy?
.
How do we know they are sad?
.
How do we know they are angry?
.
How do we know they are surprised?
.
How do we know they are happy?
.
How do we know they are surprised?
.
How do we know they are happy?
.
How do we know they are angry?
.
How do we know they are surprised?
.
How do we know they are angry?
.