The hotels are good (easy) because they email you asking if there was anyone who was outstanding. The ones that are tougher are like the water taxi captains, I've reported to the hotel and later asked the boat captain if anything was said to find that nothing made it back to them.
When I approach the counter at guest services I let them know right off that I received good service and want to "turn them in". I try to do it every trip, especially for some of those thankless jobs like the maids.
I talked to Dick last trip and he was as chipper as ever. One of the old timers at the gate, Con, retired. I would like to know when/if guys like Con or Dick are retiring so I could thank them for their unquestionable loyalty and dedication.