1. Offers an interesting project from various sides eg roadmap, whitepapper, dev team, and supply including the website that the project is not playful
2. The project is not a plagiarism project either system, website and others.
3. Have a lot of trust and support from the public, it can be seen from members in social media used. for example telegram, twitter, facebook, and others.
4. Offer reasonable rewards to the amount of supply available.
5. Project team eg Bounty manager, project team support must have good response in the forum so as to provide information about the clarity of the project. Usually projects that are not supported either by bounty manager will be left by the audience.
6. You have a sense of confidence to support the project because you are also part of their team to promote the project.
7. Search references on the website regarding an ico or airdrop project rating. Many websites are already providing analysis and review exp : icodrops.com or icostats.com