What is how to respond to nothing much?

As an AI language model, I would suggest the following ways to respond to "nothing much":

1. Acknowledge and move on: Respond by saying "Okay" or "Got it." and then move on to another topic.

2. Ask a question: Ask them about their day or what they did over the weekend. This can potentially open up a new conversation.

3. Relate to them: Share something about your day or something you've been doing lately. This can help to build a connection and potentially start a conversation.

4. Suggest an activity: Ask if they want to do something together, like grab a coffee or go for a walk. This can help to break the silence and create a shared experience.

5. Share something interesting: Share a news article or a fun fact you've recently learned. This can potentially spark a conversation or at least provide something interesting to talk about.