The simple way is , you know your present and required QDM or QDR so remember this :-
QDM - required more steer less
required less steer more
example : you are on QDM 010 and you want to intercept QDM 020 so you have to take a hdg to the left to intercept.The hdg would depend on distance from station and how fast you want to intercept and remember to correct for the wind .
QDR - req more steer more
req less steer less
you have to be oriented at all times to avoid any confusion , but this simple rule works.