Self Study
Say what you see
Talk to yourself
Read Aloud
Use the DailyStep method
Listen to English speaking radio
Keep a notebook
Have a good general attitude towards learning words
Note down all new words.
Correspond with an English-speaking pen-friend.
Read aloud to yourself from printed text.
Soliloquize', i.e. translate along in your mind silently
Find a good basic vocabulary word list
To practise, randomly pick a number of words and make up a simple, but probably crazy, story using the words.
Make your own word box
Use one card per word, with the English on one side and a translation on the other.