He is brushing his lower teeth.

He smiled, showing his lower teeth.

She seemed nervous, biting her lower lip.

She seemed nervous, biting her lower lip.

I need to take a laxative.

The text of this pamphlet is set to bottom alignment.

This subscript text is often used in mathematical formulas.

I like to play with my friends in the school district.

He tried to guide people unconsciously using subliminal messaging.

He loves dirty jokes and is always talking about such things.