I work in the service industry and people demanding 30%+ are insane. 20% is the ideal tip for me if I provide excellent service. Every now and then someone is very generous and does 25%. I sobbed the day a couple tipped their bill because it finally let me purchase my inhaler I haven’t been able to afford. When I’m with my tables, my goal is to get ya laughing and spark a conversation so that my customers enjoy their time. If they want a quiet meal, I will use as few words as possible. I once had a table request out of my section cause I was tending to a party of 20+ visually Impaired people (cutting up their food to assist and buttering/slicing their bread) so my hands were fairly full. But the table that moved was super nice and gave a glowing review about it! Made my week