If the signal is made by waving with a vertical motion (up and down), or if a green signal is fired, its general sense is affirmative, e.g. 'Haul away', 'Line made fast'.
Okokuba umqondiso wenziwe ngokushukuma okuthe nkqo (phantsi naphezulu) okanye okokuba umqondiso oluhlaza udutyulwe isivo sawo jikelele siyavuma umzekelo ``Nyusela kude'', "Intambo eyenziwe yaqina."