With Lee Sin you can start your jungle with Wolfes and Blue buff or the wraiths and Red buff...
Personally i prefer to start with wolfes and Blue buff and i pick it smiteless with the help of my teammates. After blue buff you go straight to Red buff and you try to do your first gang to mid or bot because the wont expect it... After all this at least on 7:00-7:30 mins of the game and while you have follow this jungle path you will go and chech your enemies Blue or Red Buff accordingly with the buff your opponent start his jungle...
Have Good Luck and Fun in your games with the your blind monk (I know my english is bad cause it isnt my native language... :DD)