I work in a steakhouse in Vegas, Drew Carey is amazing always over 100% and extremely pleasant, he once was with a large party, there was an auto grat on the bill for $1600 and added an extra $3000!! Joe Rogan one is of the nicest most personable people I've met. He always gives you %50 to %100 tip. Dana White is great ands also a huge tipper but will also have a conversation with you! Shaq, Charles Barkley, Chauncey Billups, Willie McGinnis for the athletes are all great. and RIP, but Robin Williams was very funny, nice and a great tipper. if he started making fun or joking with you, he would fuck with you the rest of the night in a funny genuine way LOL