What's your fundamental criteria for picking a coin to buy

[Dydot]

What's your fundamental criteria for picking a coin or ICO to invest in? A lot people do say do your research about the project.

The question is what research of findings is enough to decide to invest or not? What do you look out for about the project? - whitepaper, website, announcement, Facebook page, the project team etc

You contribution will be appreciated. This will help the newbies into the cryptocurrency world.