Look at the plates of everyone around you. If everyone’s pretty much done eating, quietly stand up and stack/scrape all the empty plates and take them to the counter.
Everyone will be genuinely appreciative, you get a few seconds of peace while turning in the plates, you can help hide how much or little you ate, and the empty table helps the evening wind down more quickly. Works at any table where you’re not waited on. There’s no way you can’t win when doing this!!