what’SUP 要怎麼回覆？

這樣可以回覆：

1. Awesome! 很讚啊
2. Pretty good. 不錯喔
3. Not too shabby. 還行呢
4. Nothing much happening. 沒什麼特別的
5. It's okay. / Just the usual. 還挺好啊
6. Same as always. / The same old routine. 一樣的老樣子