How is he feeling? How do you know?

Is the women in the glasses listening? How do you know?

If you could have one superpower, what would it be and why ?

During a long distance run on a hot day, an athlete produces large quantities of sweat. As a result, the kidneys change the rate of urine production. Why is this change important?

How is he feeling? How do you know?

How is he feeling? How do you know?

The main function of the human digestive system is to

How are these women feeling? How do you know?

Are these two women engaged in the conversation? How do you Know?

Do the two gentlemen look like they are listening to the women? How do you know?

How is the man on the right feeling? How do you know?

How do you know when someone is ready to talk with you?

is the man interested in the conversation? How do you know?