Not Updated For Current Season
The masteries shown here are not yet updated for the current season, the guide author needs to set up the new masteries. As such, they will be different than the masteries you see in-game.
Jungle Route Recommendation
If you start Golem, its where you'd usually start, skipping Red after you complete Golem will help you clear more camps based off how much damage the Red buff puts out. Krug (Golems)> Razorbeaks(Chickens/Raptors)> Wolves> Blue Sentinel(blue buff)> Grump>(you will get extremely low at grump, around 100 HP, if you prefer not gambling with it go back after blue) Red Brambleback(Red Buff) and follow up with ganking mid or bottom. After you've completed your first clear it's all up too you now.
If you start Grump side smite Grump to help with the clear, do blue buff > Wolves >
Raptors > Golems > Back > Red buff and gank bot or mid.
-- If your a new player to the game I'll leave this link here so that you better understand the route in which is recommended
I recommend not doing Red until it's your last possible camp just because of how powerful it is early game with your presence in a lane. It slows and does damage over time, your keystone + your Q will out put a lot of damage and you will have a higher chance of possibly giving your laner first blood, a kill or just burning a flash. Just remember that your presence alone creates pressure on the enemy laner and it will cause them to play safer or push them to tower which will in turn make them lose farm.
TIPS ON JUNGLEING SUCCESSFULY
Vision is Key, but sometimes your laners are so focused on the lane, farming or fighting that they don't pay attention to the vision they've placed or the lack of. A tip from one jungler to another is keep an eye on the map for your team. Place vision for them if need be but while you as a jungler are doing a camp just look at the map, ping Missing in action(MIA) for laners if they forget to. Just feel that if your team mate doesn't ping MIA and your teammates lane gets roamed on that part of it is your fault. Always keep your cool, and if you can get one of your laners ahead keep them there. Always remember that no one is perfect, if you want to gank a lane and your team says that it is warded gank it anyways- The enemy can be just as blind as your own team(if they're not focusing on the vison they've placed)
pay attention to the map
keep tabs on the enemy jungler and try to guess as accurately as possible where he possibly might be based off where you are
keep your team motivated, congratulate them on there victories and tell them too keep there heads up if they start to fall off
one ult can change a game- it's never gg until the fat lady sings
give your 2nd/3rd buff away to your laners to keep them ahead or help them get ahead