Okay so as a jungle Amumu you should start wherever bot lane is and if its blue buff you are in luck that is the better side to start you'd take blue, then gromp, then wolves and make your way to the other side. If you end up starting red buff take the buff then raptors and make your way to blue buff. after that you'd take the buff and gromp the while going after scuttle you'd look at lanes and determine whether they are gankable or are in need of one. If yes then try to get on the farthest backside of the enemy and flank the to help out with the fight. make sure to ping before ganking. from there you take your jungle as fast as possible and always have wards down and check lanes for possible ganks. If falling behind then try to either gank the lanes winning or heavily focus cs more than anything else. each camp no matter the amount of enemies is 4 cs so keep that in mind. for any further help comment or hmu if you know me.