what’s up要怎麼回？

你可以這樣回答：

1. Awesome. 太讚了！
2. Pretty good. 相當不錯喔！
3. It's okay. 還可以啦！
4. Not much going on. 沒什麼特別的。
5. Things are alright. 還行啊！
6. Same as always. 依舊如此。