Reply with ‘my rent!’ when someone asks ‘ what’s up ?’ and your rent really is increasing. This will lead to more questions from your conversationalist, ultimately resulting in a longer conversation. However, be careful about who you use this phrase with as it may be personal or something you would only like good fellows to know. What’s up or how are you are very serious questions on Nordic cultures and are meant to be a spark for a conversation. Usually history is shared between the people who ask this question and it is further a way to connect with each other. Click to find out how to respond to " What 's up ?" and turn the conversational table over! Check out our top 35 picks and get immediate results. Conclusion: How Do You Respond to “What’s Up ?” When someone says “ What’s up ,” it is an everyday greeting that you can respond with one-liners such as “Nothing,” “Not Much,” or “Alright.” When asked this question, the appropriate response is to return the greeting or confirm that everything is normal.