Pretty sure not everyone knows what "relax" means. People who overthink, people who go to therapy, people who have mental problems. Do you just tell them "come on, you KNOW what relax means!"

Even if you had a "natural convo" with them, you'll never know if they were STRUGGLING to have this "natural convo" with you.

I assume you work in software since this is HN. Never assume you know about your users. Please.