not good.

1. Always stand. Supermarket cashiers need to stand all the time when they go to work, which is hard and sometimes they have to work overtime.

2. Test the reaction ability. To be a cashier, you must first have a certain degree of recognition of the authenticity of banknotes. Although you can pay by mobile phone now, you will also meet customers who use banknotes, and you need to have a quick response ability.