Maybe you are just jealous? If a guy and a girl are good with each other, they embrace, kiss, smile, "shake up" - what's wrong with this? They enjoy each other’s company, and that’s great!
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Stop so childishly justifying your uneducation. No one will pay attention to the "crying on the ear" pair. But when you get into drunkenness publicly footing and ticking the three-layer body, and it whispers to mask its "guy-guy" urges to swallow from pain - the people around struggle with nausea and occasionally sympathize. And those who are in free swimming realize that it is better in free than to agree to such a humiliating relationship with an uncultured person.

Even in the Zamaitsky "We", where people were stripped of the right to any intimacy and privacy - and that to fuck, the characters still covered the transparent walls with curtains. But you - roll, you can still sit straight in the bus, and annoyed stickers that they envy your excellent digestion.