How did they pass you on the right? Were you in the left lane, or was the right lane really wide?

I usually don't filter, but sometimes I do. If I do, I don't stay on the extreme right but closer to the center of a lane ahead of some car, never the first one though, because it may want to turn right into me. I don't filter if there's a big vehicle ahead due to blindspots, and they're just so big. I've learned not to trust motorists' turn signals.