Kim had spent the last three days writing the speech she was going to give the students during the assembly. She wanted more than anything to be elected as the president of the student council. When she looked down at the paper in her hand, she realized she was holding her math homework, not a copy of the speech. Kim looked up to see hundreds of pairs of eyes looking at her. Not wanting to give up on her dream of being elected and not wanting to appear unprepared, Kim gave her speech off the cuff.

What does the author mean by “hundreds of pairs of eyes”?