How to distinguish a Good ICO from a Bad ICO?
Read some ANN and most them are quite convincing
You need to analyze the team, check the real people are shown in the photos or not
View the site, read the whitepsper, view the RoadMap, etc.
Annoying is the fact that even when you do all the stated above, you still fall to scams. I'll also like to further verify if any any of the teams members have friends/colleagues from their previous employments as friends