It's not as silly a question as I first thought! It is all visual references peculiar to individual pilots n planes. From the left seat of my 757/767, if I drive the centreline just outside my right knee, that works well. Then look as far ahead as poss (bit like a car) for straight lines and gentle turns. For sharper turns eg 90deg onto stand or with narrow taxiways you have to go deep into the turn (remember the nosewheel is behind you) and then use the tried and tested TLAR technique which is honed by experience on type. (That Looks About Right).
Hope this helps
DH