Funny case from life: I went home late in the evening, and in front of me, a strongly subdued man walks and walks, the face was apparently unfriendly, somehow I unsuccessfully met him with a glance, and he was led to my side;
There was nowhere to turn, and I made an unexpected gesture for him (and for myself), extended his hand to greet him and smiled, he reacted similarly, shrugged each other's hands in silence and separated each on his own path :)