Get Pawn to Move Backwards when a Button is Pressed

I need to know how to make a pawn move backwards whenever input is pressed.

Pawn as in your character or another character in the level/game. Also input you mean, keyboard or mouse etc input or input(button) as in when you walk over to press a button on a wall in a game. Let me know and I can point you in the right direction.

I mean a pawn as in character blueprint, and input as in keyboard input. This is supposed to be used as a hiding like feature, to advert AI senses. Thank you.