Yes, even when flying an approach manually, there are two of you flying the plane: the FBW* and YOU.
Airbus FBW will make small corrections to stay in the attitude you put it, even in light gusts, so let it do the work !
On an ILS - or even a visual - on a non turbulent day, you just have to occasionally nudge in roll or pitch to refine the flightpath, for example as the wind vector changes.
On more gusty days, the principle is the same, but the 'nudges' might need to be held for longer, but always return to neutral between each nudge.
* except for Direct Law
Last edited by Uplinker; 18th Jan 2017 at 10:45.