«فَمَنْ آنَسَتْ نَدًى بِيَدِهِ أَلْقَتْ وَرَقَةً مِنْهُنَّ لَدَيْهِ»
A slip was placed near anyone whose hand appeared generous.
“Generosity in the hand” is an idiomatic cue, not literal moisture. The attendant selectively distributes written appeals to those from whom a gift seems likely.
Persuasion therefore works through two layers: the wording of the appeal and the strategy used to place it before a receptive audience. The document itself becomes part of the performance.