Acura Integra 97 Idle Problem

honda
nissan
acura
integra
rpm

#1

When i am driving around town and come to a stop i put the car in neutral and coast to a stop. The car while i am in neutral coming to a stop will be at 2000 RPMs. Now it is a manual so it should drop back to 800 RPM? Its only when i quickly tap on the gas peddle and release it that the car goes back to 800RPM. Do you know why this might be?