老外见面说how's it going,需要回答么,怎么回答最恰当?

老外见面说how's it going,需要回答么,怎么回答最恰当? 老外见面说how's it going?到底怎么回答合适? How"s it going in your school?怎么回答 how's it going 如何回答 How is it going怎么回答 how is it going?怎么回答? How's everything going 应该怎么回答? How's it going?回答：It's good /fine? 当别人和你说“hey,How's it going?”该如何回答? how are you going to prepare for it怎么回答 how is it going 表示天气吗?怎么回答 how's it going是不是首次见面时用的