On heavy traffic trips, which I don't make often (except while on duty), I would rightly say that 30% of my actions involve a signal to another operator, whether it be lane change, slow moving/hazard vehicle, upcoming conditions change, etc.
I signal drivers that it is reasonably safe to merge, or get back into the right side after passing, or that they should pass, so on...
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"¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"
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