IN the begining always jungle, atleast until you have your ulti at level 6
after that you should have gotten your boots and razors. if needed pick up wriggles lantern.
after you've done this start hunting on the lanes. because of the razors your alpha strike should be able to take atleast 2 minons out with 500s
farm until you have enough for the rageblade. once you have rageblade anything item that gives speed would be best.. but for personal suggestion wise i usually prefer to pick up blood thirster first so you can have some% of life steal :)

after you have these basic 4 items. you should be able to kill anyone around your level even if its 1v1. if its a gank on you. take out the one wtih lowest hp first, so you can build your rageblade and your hp :)


later in the game if you bought all the items.. you should be able to run up to a tower and constitanly hit it after activating wuju style and your ulity. this usually allows you to take the tower without really burning your hp