Be brave and ask questions!
My husband and I are an older couple (65 & 71) and when we first started going to Europe we took tours and soon found out that we could go there on our own. Last year we got a rail pass and traveled all over Germany.
So, my tip is to learn a little of the language and with a smile on your face ask questions. The people we talked to were very happy to give us directions or suggest restaurants. The right attitude will get you some wonderful experiences.