Anyone handlng papers will frequently find the need to tidy-up a bundle of loose sheets. This is invariably done by picking up suitable handsful ~ two hands are needed. This bundle is then gently held edge-on to a resistant surface and gently tapped against it. The bundle has to be held loosely in order to jog each individual sheet ~ to make sure any that stick together are shaken free. Some fanning apart and blowing air into the pile may be necessary.
It is difficult to tap-down with thin and floppy papers.