I don't care about anonymity or anything so I'll give my short take. Back in 2012, I worked at Racer and Zephyr. I was 17 at the time, fresh outta high school and just buying time during the Summer months before starting college. I did the sorts of spiels that are being complained about here, and 5 years later, I think it is the most obnoxious thing in the world. I even sorta kinda regret doing them because now, I have the experience of going to the park years later and seeing everyone do the same stuff, and seeing firsthand how unpleasant it is.
Nobody is dissing you, the jokes and quips really don't represent the park (or hell, even you as an employee) very well. As an added bonus, they aren't clever or funny in any capacity. You can guest relate without making lame jokes about being at the wrong park or the wrong ride. Compliment someone's shirt, have a short discussion with someone on your crew before a train gets back from its cycle. If it's a flat ride, just let people enjoy their ride during the cycle. (I don't even like riding Zephyr anymore because there's a blaring speaker asking people to scream or recite years-old commercial jingles every 3 cycles.)
Do anything, really. So long as it doesn't reflect the park in a bad light, annoy anyone, or even more importantly, interfere with your real job -- making sure nobody gets hurt on the ride you're working. Get through the day by doing your job correctly and making someone's experience at the park a pleasant and safe one, not by trying your best to be a comedian.