Something that i learned throughout my life: "we don't get anything by creating enemies, but we can get the world by creating friends"... back in 2016 when i went to a festival i was able to be friends with 3 of the people that worked at different bars, one i got free booze, the other i got free Redbull and the other free tobacco, since i don't smoke i gave it to my friends, but well, i got free booze for almost 10 days, without paying!
see everything will eventually work out well. If the other people are just normal and you speak to them in a good way making some jokes that's all that matters. I remember when i was a lot younger and went first time vacation with friends in an island because of the way i spoke to the waiters each time my drink was on the house :P