The crone wasn't going to stop the punch from happening. A broken or even popped nose, or a split lip would give her just enough blood. She grabbed a few napkins only after ripping a length of material from her skirt. It didn't look great, but with fashions these days it worked. Plus, how many people were going to question the little woman on her fashion sense?
She just waited. Maybe she willed the thug to throw the punch, or maybe she merely hoped it would. But the guy was certainly going to hit Logan if the reluctant hero didn't do something soon.