Just find a good exchange and this is it. Unfortunately, it does not matter at all how good the project is, because if the IEO is held by Binance, every single token is going to be paid. Take part in IEOs on top 5 exchanges, and you won't manage loses at all.
Thats right, only participated IEO on top exchanger, like top 10 exchanger, they will think multiple time before cheated investor or trader.