I checked the project and see if it was possible and reasonable. then I checked their leniency and asked some questions. I also check their web pages, see who's on the team, maybe it's some of the strategies I use to believe in the new altcoin
Asking some questions directly to the team member is much better after reviewing the information in their whitepaper and other sheets. Its all in checking the important things that we should give importance for our own criticism of identifying a scam or not. Mostly, asking another infor or seeking from other legitimate people reviews.