What are survival phrases to make conversation easier?

When it comes to speaking Spanish aloud, it can get overwhelming quick. I’m trying to compile a list of phrases that I can use to make things flow smoother, for example:

¿Puedes repetirlo? = Can you repeat that?

¿Podrías hablar más despacio? = Could you speak slower?

¿Qué significa X? = What does X mean?

What phrases have saved you that I can learn? ¡Gracias para sus sugerencias¡