you clock in at the start of your shift, I get my till for the day and add the float before I take any customers, i chat with the customers as I am serving them.
There is not much to learn being a cashier, be fast and efficent tell customers the special offers that the shop has to offer.
Being able to reconises that someone is underage and ask for their id to make sure.
management is firm but fair.
The staff at the shop are fun happy people to work with.