I work on the Freedom Trail in Boston. I would say I've developed a lot of patience. You say a lot of the same things over and over and over again, and try really hard not to sound like it's the 85743579327532753724th time you've said it that day. You just have to realize that for whatever reason, people leave their brains at home when they go on vacation. People suddenly lose all ability to read (words and maps), and sometimes they lose basic social skills too. ("Hi, how are you today?" ... *horrified/blank stare/look in opposite direction*). Regardless, I think it's really fun to work in the industry, and I love hearing about how people's vacations are going. You have to have the right attitude about it I guess. If you think "I don't want to repeat myself a million times, people are so annoying" then the job will actually be annoying. You just have to make peace with the situation and have fun with it.