How do y’all hit “C” on your keyboard when gaming?

I got into a huge argument with two friends on how to hit C to crouch/slide on a keyboard with FPS games. I tap C with my index finger by using my my joint of the finger on top of C. I was also under the impression that everyone hit C with their index finger by moving it down or the same way I do. My friends on the other hand, hit C with their thumb. I simply couldn’t believe it and it turns out all of us have different ways of holding the keyboard and such. How do y’all press C? tl:dr what finger do you use to press C? https://192-168-2-1.link/ http://tplinklogin.info/ https://192-168-1-128.link/