Taxiing on the ground - the wing is sitting at a high angle of attack and so is more susceptible to gusts than a nose gear aircraft. You should "fly" the stick when taxiing to avoid the wind lifting that wing.
Stick back and aileron into into wind when the wind is from the front.
Wind "blows the stick away from you" when it's from the back - i.e. Wind from the back, right quarter - stick forward and left.
As you turn left and right taxiing about, you thus also move the stick about for each new wind direction, hence "flying the stick" while taxiing, as well as thinking about your feet!