Just like I would in a car.

I was heading home after work yesterday on a one-way street with a bike lane on the right. There was heavy traffic and it wasn't moving too fast. As I approached my left turn, I signaled and moved out of the bike lane, over two lanes into the left lane.

I then got to sit in stopped traffic for a bit waiting to get to the intersections. I pedestrian told me there was a bike lane to the right. I told him I was turning left. He gave me a strange look and didn't respond. Strange, but none of the motorists said or did anything.