Lemain, if another aircraft was coming directly towards me, you wouldn't normally see a white navigation light because that would be the tail light.
If you fly, you should know this - it's part of basic air law, which all pilots, irrespective of the type of licence, are required to pass an exam in. Normally before first solo.
Whatever I saw directly ahead, in normal circumstances I would turn right.
Great, I have your attention. What drew your attention to the light(s)? Suppose there seemed to be flashing lights associated with the group? What might you consider 'normal circumstances' or what would be 'abnormal circumstances' and would you react differently in 'normal' and 'abnormal' circumstances? With a closing speed of a couple of hundred knots in a Cessna, you haven't got a lot of time to ponder.... I suppose you could hover in a helicopter and ponder. But you don't.
If you feel it'd be OK to debate without being so confrontational then it'd be more enjoyable but if not, I'm cool with that too.