Be constructive when you go through a ticket gate at a train station. Don't just get through it as quickly as possible. Go through the ceremony.
Ask-and-answer! Ask yourself: What am I trying to do? Answer yourself: I am trying to impose my will or the memory of my presence upon everyone else. (Initially it may be best to stand still to ask and-answer; but soon you'll be able to do it almost without thinking.)
OK. So you go up to the gate and pause and fumble. Look as though you can't find your ticket; or the gate doesn't work. Use the wrong ticket. Drop the ticket. Anything you can think of really.
Only when you have caused the maximum plausible delay, should you go through.