The girl answered with a loud voice: "NO! I DON'T WANT TO SPEND THE NIGHT WITH YOU!"
All the students in the library started staring at the guy and he was embarrassed.
After a couple of minutes, the girl walked quietly to the guy's table and said: "I study psychology and I know what a man is thinking. I guess you felt a little embarrassed, right?"
The guy responded with a loud voice: "WHAT?! 200 DOLLARS JUST FOR ONE NIGHT?! THAT'S TOO MUCH!"
Now all the people in the library looked at the girl in shock.
The guy whispered in her ears: "I study law and I know how to make others feel guilty."