Why is it said (shaking legs) that men shake their legs and women shake their legs? Is there any scientific basis for this?

Social Etiquette:

Keep your upper body straight and do not shake your feet (men shake to be poor, women shake to be cheap, men shake to be poor, trees shake to death)

Shake feet The movements are very similar to the behavior of a ruffian.

Many people's feet will start to shake unconsciously after sitting for a long time, so it also makes people feel that people who shake their feet have a feeling of frivolity and instability. .

Because the ancients (many Taiwanese) said:

Poor men shake their feet (when sitting),

Despicable women (when sitting) ), will shake their feet.