left pinky
if using a qwerty keyboard then use left index finger to strike "b" the finger with which you strike "f"
Your right index finger.
It's actually recommended to use the middle finger of the right hand to strike the Enter key. This helps distribute the typing workload evenly among fingers and can improve typing speed and accuracy.
your finger
If you mean what finger should you use to make a space while typing then i would say either your right thumb or index finger next to it.:)
YOUR RIGHT INDEX FINGER
Iused once and got a strike
you use your index finger to type the letter b
our fourth finger is used for typing the f
Right-index.
You should use the ring finger.