Auto-translated
Successful people rarely walk the streets; they usually travel by car with a driver.
If you happen to meet someone on the street, look them in the eyes. A successful person will calmly meet your gaze. Others will either look away or stare back with a challenging expression. This applies to men.
As for women, if she's walking arm-in-arm with a successful man, she's considered successful too. Some say you can tell by the fashionable brands she wears, but I don't know much about that. Besides, these brands are still made in China. It's pointless to look a woman in the eye – both successful and unsuccessful women look the same.