Hi Evilpopcorn,
with initiative it's easy. You do your continuation bet as you always do.
Without you should check/raise most of the time as you are still very often ahead. The second opponent is not very important so this doesn't differ much to the HU play.
The turn is nearly always another bet.
But these situations are nearly never the same. The best is to post hands and review hands/videos from others to get a better feeling about the game.