I assume that they were angling their fingers in a way to still press with the pads of their fingers? At first I imagined using the tips of their nails, but it

I assume that they were angling their fingers in a way to still press with the pads of their fingers? At first I imagined using the tips of their nails, but it seems like it would be difficult to learn using the tips since the length and angle of the nails would frequently change.