>>> Not showing the finger is still nonsense. Yes, everyone was taught, but this is a complete idiotism - instead of simply pointing somewhere with the finger, you need to tell for half an hour that "it's the one on the left of the breeze and on the right of the pillar."

There is a great book by Anatoly Markushi "Men under 16 years old", where he describes several examples of how to briefly and clearly communicate your thought to the interlocutor. The man, by the way, by profession, a pilot, knew what he was writing. Unfortunately, we in the vast majority of people in childhood are not taught to save their own words, time and nerves of the interlocutor.
To point a finger at people is not polite.