We don’t know why you would want to still use a payphone in 2013, but here are instructions on how to use a payphone.
1. Find a payphone.
2. Pick up the receiver.
3, Put coins in the slot. Or insert card if you are using an even more modern unit.
4. Dial the phone number if you have not already.
5. Wait for the phone to ring.
6. When you are finished with your call, hang up the phone.
If unclear, go back to step 1.