Originally Posted by
AllanJ
On one airline (Delta) I found that the touch screens worked much better when I clicked them with the back of my fingernail compared with pushing with my fingerprint (often the latter did not work the first time every time).
I have absolutely found this to be the case of DL. It seems to register the "sharp impact" of the fingernail better than the jolting of the finger. For what it's worth, I'm pretty sure DL has a reminder in their magazine to tap lightly...