When you tell your neighbors that it is your first time, they will gut you ever so quickly. New players are usually just too unpredictable and unreliable to trust. Best you can hope for is to promise to be someone's slave and do exactly what they say so maybe you can avoid being the first one eliminated.
Or don't tell them it's your first time! :) Even if you're playing in the newbies section online, you could say you've played some FTF games, or email games on a different server or whatever. Once you figure out what power you are, just read the Diplomatic Pouch openings article for that power, and you can fake experience pretty well.
IMO you want to come off as knowledgeable but not too experienced anyway. People are looking for allies who are going to be reliable (and communicate well!), but who won't be too tough to run over when the time comes. So that's what you look like... until you're ready to pull out the knife!
