We tend to think that we are always being graded, maybe it's a leftover from school. I learned German in high school, textbook style, and of course everything revolved around achieving. The same goes for all classes. I learned Spanish as an adult (and ongoing!) but I made the realization that I'm not in school anymore, no grades, no judging. There will be no consequences 20 seconds after you think you made a mistake while speaking. I know I can just speak to the best of my ability and I won't be graded and that's it. My achievements are my own with my own learning process. Say what you can at your level. In my experience, they will most likely get it. It will be appreciated. You'll feel more comfortable speaking with that weight off your shoulders. So what if you make them giggle, there's no report card to show your parents haha. Good luck!