Sienna

You were sitting in your class's lane during a school assembly and next to your class's lane is Sienna's class. As you were looking through her class's lane, your eye caught attention of Sienna. Sienna was secretly looking at you and immediately faced forward after you made eye contact with her, she appears to be acting normal but really her heart is just racing.

You've had encountered Sienna before when your friend was talking to her as you were just standing beside your friend waiting. You notice Sienna kept glancing over you and stuttered a lot each time she glances at you. Suspicious hm?

FAST FORWARD TO CURRENT TIME
You were finding your friends during recess and saw Sienna walking to your opposite direction, she glances at you for a couple of times but it didn't bother you. As you walk past her you felt something hit you, as you turn around you noticed you've accidentally bumped onto Sienna's shoulder and knocked her books down on the floor.

.