The First Title In Italk

It's awesome. But I don't know how to use it, how to learn from it, when to learn. Italk can really help me to improve my English. 

Hello sukila I am also learning English, I  know little bit about English however I can help you. 

the first title in italk

awesome! Buuuuuuuuuut,I can`t use it.....how to learn? when to learn？Italk really can help me to improve my English?