Male Or Female Name?

I  was wondering. How does one figure out whether a person is male or female from his (or her) name? I refer to Chinese, Japanese and Korean names.

• Japanese: https://www.spinjapan.net/how_to_know_gender_from_japanese_names/
• Chinese: http://blog.tutorming.com/mandarin-chinese-learning-tips/difference-chinese-male-and-female-names-gender