If someone has their turn signal on indicating right when they are right behind me, I'm slowing for the stoplight, and I'm at the front of the line, I move far left to let them by. I have two lights on my route where 90% of the cars turn right. Moving far left lets them by. I've had cars pull AROUND me on my left to turn right if I don't do this, so letting them by on the right is a safety plus.

By moving left I let them by and keep them from right hooking me.

I have scootched left a bit occasionally. I've never had anyone ask. It would be much easier if people put their signals on ahead of time, if I know what they're doing, I can help them more easily.