Before you invest, you have to know as much detail as possible about the project you trust. Do you know in 2018 is the year with the highest level of project ico scam?
So, my point is you must do research before investing on any ICO. There are several factors that you must see in detail. See how many problems they can find a solution, what products they produce, see if the team's background is clear or not, and many more. Do not always follow the words of people, because that is not necessarily good for you. Well, research is very important for the chances of your investment success.