There are many ways in which you can define scam projects from real ones and besides I would like to note that first of all it is worth paying attention to the team and the product itself.
It seems to me that the market by this time will change very much and may become regulated and more similar to forex, so it's worth to study the crypt...
I am glad that Bitcoin has become volatile again and now the attention and interest towards BTC has increased significantly, it means that the market is alive and continues to develop.
I think that NEO is a very good choice, because it's just the beast of the Asian market. You need only to see how NEO is rapidly evolving and it becomes clear that this is not a scam, but a cryptocurrency with great potential.