Thank you for asking this! For those who don’t have a mannequin, that’s why I mentioned '(your productivity.)' You can use alternatives if needed.

If you don’t have a mannequin, you can use a firm pillow or even a stack of folded towels as an alternative. While it won’t be exactly like a mannequin, it allows you to practice hand placement, compression depth, and rhythm. When teaching others, you can also demonstrate on the pillow, emphasizing correct technique and explaining each step as you go