Spend your time on things that interest you. If you like cooking then buy an English-language cookbook or find recipes on the net and practise following the recipes. You'll soon know if you have made a mistake!
Keep something English on you (book, newspaper or magazine, cd or cassette, set of flashcards) all day and every day, you never know when you might have 5 spare minutes.
If you are too tired to actively practice just relax and listen to a story in English, an English pop song or talk radio station.
Get onto Google Plus, Skype, other social networks, or be really adventurous and start socialising in Virtual Worlds.