some tips for noob junglers...
1- DONT PICK LEE SIN PLEASE.
2- DONT PICK KINDRED PLEASE.
3- FALLOW THE RULE 1-2.
4- If your top lane is winning hard, please never gank top. Let him snowball. Instead of wasting time on a won lane , secure the dragon and put some deep wards.
5- If all lanes are pushed, there is nothing to do, please don't just afk farm or tax the lanes. Put some pink deep wards, try to counterjungle, ward enemy jungler's buff's.
6- every time you go base buy pink ward first, then get what item you want. You have 1100 gold and you want to buy
. Dont! Get pink ward and buy rubby cristal and boots.
7- If you got feed during early game, please dominate the bottom lane. Any jungler with few early kills will ruin the enemy's bot lane. No matter what. Use your kills for your advantage.
8- If yours and enemy's top lane have %10 hp without summoners both, please go top lane asap. Because at this point, whoever's jungle gank first will let his mate dominate the top lane.
9- Give the map some pressure. Jungling is all about controlling the entire map. Forcing your enemies to feel that you can always come out of nowhere. Do it ! Even if you know you cant kill someone, force for the gank, never hasitate to waste your flash to kill/or take flash away. A mid laner without flash will be too scared to play and you will let your mate win the lane.
10- If enemy top laner is winning hard, please dont gank top at all. If you know you can force the enemy go base, or you can take turret then do it but othervise you wont change anything. 4-0 irelia will kill your mate after you gone. So...
11- PLEASE LEARN HOW TO KITE CAPMS. Instead of ganking with %30hp, you can kite next time and gank with %50 hp. Do it! Because if you dont, it will end up you crying how rengar can deal that much damage in early game, he is too op.
12- When you see a pink ward (river tribush top side , or bush behind the red buff) dont destroy it. Just put a yellow trinket ward, So you might let your mates know there is a pink ward. More importantly if someone comes there to kill free trinket to get some gold from enemy team, you will know what he is doing and where he is. This is more important. For example you put a trinket on a pink ward, then you went to base out of it vision, enemy top laner will have to go base because he saw you and you might gank him. But no , you already recalled and went base. Enemy jungler will think you might counterjungle him, but no, you recalled and went base. Then... Top laner recalls and goes there first to kill that ward, your top laner will be free to do what he wants for a short time. Basically, you will use the advantage of a pink ward more than you could if you simply destroy it. Anyway it will stay where forever unless you kill it.
13- try to gank at lvl 2. Nowadays I do it a lot with redbuff, and enemy never expects me. They are with high confident, pushing the waves to reach lvl 3 first then ta-daam. Xin ganks with redbuff, holly shit. I killed a syndra with ghost+flash burned just because of a lvl2 gank and redbuff.
14- When you have redbuff gank mostly, when you have blue buff then farm. This is a important decision for early game. If you started from red side then gank at least one lane before you go to take blue.
15- never smite your buffs in early game. NEVER! Wraiths and wolves give more than hp from redbuff. Only smite redbuff if you know you are going to die or enemy jungler might steal it.
, and I can tell you from my own personal limited experience that neither one can accomplish very much at level 2. Warwick can't even threaten a lane until Level 6. They'll just laugh and walk away. Amumu is only slightly more scary, but until level 6, you just walk away from his tantrum and it's over. Pressure is all that they are capable of, and often times I do more harm than good by attracting the enemy jungler to where I just left.

and learn how to use them, I'll consider ganking earlier. Until then, I just try to control river and farm my camps until 6, only showing my face if something is really going down somewhere.