four men

Can you know the background of the four men in front of me now?

Four middle-aged men in pink, green, white and flower chatting in the cafe.

Colored men seem to want to say a lot, and white men seem to agree;
The green man was shaking with his right foot, leaning back, holding a glass in his left hand, and holding a big belly overflowing the elastic of his trousers with the other, without saying a word;
The pink man was wearing a half mask, his right foot was on his left leg, his eyes were half-squinted, and he gracefully held the upper edge of the glass with his left hand and took a sip.

They drank black coffee while green gulps.

Talk about kids, talk about college life, talk about spouses and daughters.
When they go out, they always like to talk to people, and they always like to spend time chatting. The white man said so.

The pink man smiled and patted his hairless scalp.

The man in color drank the last drop of the black liquid in the glass, as if it were a signal that the conversation had come to an abrupt end.

Sudden.

Four men, get up, get up, get up, get up,
The four men walked in all directions, as if they had never chatted.