As Rengar, you first want to kill the Wraiths and then head on to the Lizard and take Red Buff. After that you can go and kill the Golem for Blue Buff, or kill the Wolves or the smaller Golems. Then just proceed with the regular jungling, and gank as soon as possible.

"Why these items", you might ask. Well, it's simple. Start with boots for the early ganking speed, and because Rengar ain't that squishy early, so the Cloth Armor won't be needed as first item. And Wriggles Lantern is a MUST for all AD junglers. In my opinion, Wriggles Lanntern is the best jungling item, due to it's stats.

The reason I added Guinsoo's Rageblade was because of the AP and AD. And Rengar's W, as many of you know, scales on AP. Plus you get more AP and more Attack Speed each time you strike an enemy, for a short amount of time.

I always take a Bloodthirster on almost all the AD champions I play. It's a great item!

Finishing of with a Frozen Mallet is a good way to be a little more tanky late game, and is also good on Rengar with it's passive, since you will run after like every single enemy.