There are lot of things to study to find a coin with potential to rise. You have to study the project, the team working behind it and their experience in that field. Price is also a big factor in rise of a coin.
Cryptocurrency is way more difficult to study IMO because the value purely depend on supply and demand
So how they attract people to invest into their project ?
They must show some advantage that unlike other well known ICO so people become more interest on it !