7 things girls do in an exam hall:
1. write
2. stuck hair behind ears
3. again write
4. change the empty refill
5. again write
6. ask for extra sheet
7. again keep writing
7 things boys do in an exam hall:
1. count the no. of girls
2. check out the young lady supervisor
3. counting how many windows n doors
4. revising the location of chits in the pockets
5. seeing the brand name of a pen
6. waiting for the time, to get out of here
7. think to study well at least for next exam