Would Blonde really have... (Spoilers)
... scribbled on her paper to find hidden clues, if Black had not stopped her? Since this would have been the one stupid thing she would have done in the entire movie (with everything else being pretty damn smart), I think this might have been a deliberate misdirection:
I think she wanted to appear willing to do this so that others would discard her as a dumb blonde. Hereby she took herself out of the firing line of people like White who would be trying to take their immediate competition out first. If nobody had stopped her, she would probably at the last second said something like "No wait, this is stupid" and moved on.
What do you think?