別人說what’s up怎麼回？

以下是一些可能的回應：

1. 很棒啊 - Great!
2. 很好喔 - Good!
3. 還不錯囉 - Not bad!
4. 沒什麼啊 - Nothing. / Nothing much. / Not much.
5. 還行囉 - Alright! / Just life.
6. 老樣子啊 - As usual! / Same old.