How do you keep your vocabulary?

[Sunhoek]

I am currently preparing for IELTS test but I have some problems to keep my vocabulary. It is not hard to find English words that I didn't know before but it is pretty to remember these new English words permanently and use them properly. Sometimes, I wish I could be a native speaker so I woundn't need to forget new English words. How is your way to keep your vocabulary efficiently?

[Jamie (K)]

The only way to keep your vocabulary is to read a lot, write a lot, listen a lot and talk a lot.

Use it or lose it.