simply look ahead and to the side of the cowling for a reference point ahead ... if it doesnt move then either will the aircraft
attitude should be set with external references and confirmed with instruments
forget about weaving around .... every 1000ft or so lower the nose to get a good look ahead, it should be a gentle lowering of the nose of the nose just enough to look ahead - so gentle your pax would not even notice ... it only takes a second or two ... and wont really affect your climb perfroamnce
Looking at the initial post, shum is using a cloud instead of a ground ref point, it is actually using a ground ref point that will cause you to fly a curve as you will drift and have to adjust heading to maintain it
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I would not totally agree with how you have worded this statement -
heading = track + drift
you need to choose a drift compensated heading that will ensure the aircraft tracks directly to a ground point - choosing one well ahead and keeping it fixed in the window will ensure you fly an accurate track which is generally what we care about - this will also ensures accurate heading maintainence ...
not sure I agree with using clouds as heading references !!