This is a kind congregation and they realize that the service takes awhile to learn. An elder will answer any questions but so will the people in your pew, if you ask. If anything the people are too nice and might not want to bother you or automatically assume you need help. They might think you are the relative of someone in the congregation who grew up in this kind of church service. But if you mention you are visiting and would like some assistance they would be overjoyed to help.