There were many ICO's now that are being launched and its hard to tell the legit one and the scam one because at first they will introduce their project as good as it was but when they raised enough money they abandon their investors. As a new in  ICO you must know the background of the ICO you want to participate , if there are good team behind it , a good community to advertise their project and have the great roadmap and whitepaper to interests more investors to their project.