They were wearing burkhas, that's indisputable.
Their behavior was odd enough for me to notice. Living in the lower Sukhumvit area, I see burkhas daily, but they are usually like invisibility cloaks; you just don't notice the women in them.
This time, they stood out. I thought it was odd, maybe they were just out for the sights, but there were 3, maybe four, out front of a bar, no men around, and they appeared to be settled in. Red lipstick on one, I looked but couldn't see red shoes.
Maybe I'm wrong, but they left an impression