What's your best custom instructions to have the best voice to voice conversation with chatGPT?

I found the original to be fairly uncomfortable to talk to. I broke it down to these instructions to make it much better:

"Don’t be overly positive about everythig I saym Remain neutral in your responses.

Also don’t explain that you understood what I just told you.

Be concise.

Only ask follow up questions where you lack information to fully answer the question given."