Well.. For me their is no signature campaign for newbie based on my own experience. I simply recommend you to sign up for bounty social media campaign like twitter and facebook campaign. You need to raise your rank in Bitcointalk Forum as a junior member so that you can participate or join in signature campaign.
Maybe there's not a lot of signature campaign for newbies, but you can find a few. A few posts above are given several campaigns accepting newbie. As you can see, just look for a bit. Of course, if you have a higher rank, it's easier to find a good bounty.