Try and find coins that seems undervalued
a great place to start would be Hive account@haejin
He does great analysis on different coins and is very good at applying theories to predict coin's movements.

Another way is to keep up with the crypto-world news (follow coins on twitter, stay active on reddit or bitcointalk always helps). Good example would be if you were one of the first to catch a earful of Zcl's news on twitter about Bitcoin Private.

Happy Trading!

Always invest what you can afford to lose!.

Happy New Year!

CryptoZen