With a counter-clockwise rotor (i.e. US makes), you point your index finger down while holding the collective (like your making a gun with your hand) and point your finger left to yaw left and right to yaw right. It works and is easier to remember than decrease throttle for left and increase throttle for right.
Hey RMK.....that's spot on Mate, & certainly discussion points during training as well as a practical
unfortunately some French turbines have a clunk full noise or idle on the twist grip so Your power on for flight or idle/auto, nuttin in-between ie: AS350B3+/eB4, H125, H130T2, I'm sure there's more!
Makes tail-rotor problems a nightmare where luck is needed & following her around with cyclic during the run on when she spears off the line You'd pegged