What is the Meaning of the Expression
PAY ATTENTION?

Definition:

give notice to someone or something

Examples:

1. I’m sorry; I wasn’t really paying attention to what you were saying. What did you ask me?

2. Ask Mom if you can have $20 when she is talking on the phone. She never pays attention to what she is doing when she is on the phone.

3. Okay, everyone! Pay attention! Your teacher will give you some instructions and then you will work in small groups.