I fit and sell a lot of bidets, but I don’t own a bidet my self and never used one…. and with all honesty I know what they do and what they are for…. but wouldn’t know how to use one.
As with most people you are potty trained from an early age and shown how to use a toilet but never shown how to use a bidget.
Here is a video I found that help explains how to use a bidet.
Bathrooms - Kitchens 