The first thing I do when I get acquainted with a new project is study WhitePaper. Only there you can find all the necessary information about the project, including the Idea, Team, Prototype, Token Sale and much more.
Reading the whitepaper is one of the factors to consider to know if the project is a reliable one. It is very important for you to know more about the project. It may take time before you finish reading but it all worth-it.