Try to talk to some of the locals around the ramp/marinas that you frequent. Most people are more than willing to offer advice especially if they know you are new to boating and are willing to listen. I try to do this every time I am in unfamiliar waters. More times than I can count, I have been given priceless advice on where to go and more importantly, where to avoid. (i.e. there is an unmarked object in the water that will ruin your lower unit 25 yards form the ramp, ect). Just say, " I'm new here, is there anything I need to watch out for?"
Remember that you are responsible for everyone on your boat. Being a pretty laid back guy myself, I have had to set people straight on the boat. Its not that they are knowingly doing anything wrong, but they sometimes just don't know better. Let them know before getting onboard any safety items and what is allowed and not allowed. (for example, people tend to want to sit or stand in places that are illegal and unsafe while underway, make sure they know not to)
