Write the word and how you pronounce it on the front and then 2 of your own sentences using the word on the back.
Spend 3 minutes each day looking at each card and remembering the word and pronunciation. Throw the card away when you have learnt the word and make a new card for each new word you learn.
Write new words in a notebook or a diary. Write the word in a sentence so you understand how to use it properly.
Look the words up, add them to a flash card, or put them in your vocabulary journal.