The other person asks you, "How's it going?" How to reply reasonably depends on the relationship between the other party and yourself.

If the other person is an ordinary friend or former colleague who hasn't seen you for a long time, then answer "Fine, and you?" How have you been recently (work, life, study, family, related greetings) ".

If the other person is close to you, it doesn't hurt to say something like "it was not good until you said hello to me".

If the other person is your ex-lover, you can't have any relationship. Just take a few sentences casually, not too many, lest the other party misunderstand-no matter who gives up, someone will pass by.

If you have a holiday, people can take the initiative, and you should not be too entangled. You can come. I'll say hello to each other.

Grasp the principle, don't hurt others, don't expose shortcomings.