In An Experiment On Social Interaction 3 People Will Sit In 3 Seats In A Row, In How Many Ways Can This Be Done?

Call the 3 people A B and C and see how many possibilitys you get

A B C

A C B

B A C

B C A

C A B

C B A

What i do is slowly swap them so if you had 4 youde keep the first 2 the same

A B C D

A B D C

Then swap the second one

A C B D

A C D B

then swap again

A D B C

A D C B

and once they are all done, swap the first one and repeat (swap a to b, then swap the last 2 etc)