You should use a towel after you wash your hands.
Nick is finishing washing his hands with the bathroom door open and his wife Lynn can see him.
Nick wants to dry his hand son something.
Nick looks around and locates the hand towel before using it to dry his hands.
Nick wipes his hands on the pants of his legs, rubbing them into his pants until they're dry.
Lynn is happy to see Nick using the proper towel that she put out for hand drying specifically.
Lynn is disturbed that Nick is so lazy and annoyed that he has bad habits she'll have to try to break.