ICO is very rampant nowadays, it's pop up like a mushroom in the wild.. Well don't blame all ICO, there's an ICO out here that has a real project and real people behind.. This tip will might be help you..
1. Make sure the project is really exist.
2. Don't over rely on Whitepaper.
3. is the dev team shows themselves in the public? or making a live video to discuss their project?
4. How about the office? is it real?

This are the few things to consider before you decide to invest in ICO's.