You don't have to prepare anything. This job has nothing to do with fitness. You are not fit to be a coach.

It is estimated that the most likely thing is to do fitness sales, that is, let you distribute leaflets outside and try to persuade interested people to come to the fitness club to experience and apply for a card.

This kind of work mainly depends on your affinity and ability to withstand pressure, because not everyone is friendly to salesmen.

As for promoting the necessary fitness knowledge, the requirements for sales are very low. Just look at the usage of each instrument and know a little sports knowledge.