know your jungler

understanding that the jungler role is VERY sensitive, and keeps on creating a very high impacts towards the game in almost all lanes

now whenever you see a jungler, you need to know exactly what roles do they serve.

for example, Junglers such as are a Ganking junglers, they shine BEST at ganking, having them on your team meaning you need to know how to set up a gank or Bait because mostly it will benefit you

while junglers like tend to want to apply pressure in the lane they show their selfs at, they won't gank unless they see an opportunity, you have a jungler similar to that? don't push hard when they farm your side of the jungle, and most importantly, FOLLOWUP, i cannot stress how much important for those junglers to count on you to followup

and then you have junglers that have like to focus on objectives, such as

each of those can serve more than 1 purpose depending on the build

you want a Gank? know how your jungler wants to approach your lane.

couple more advices:

1- Clear all wards from the side your jungler coming, or at the very least tell your jungler if that bush is warded or not

2- Force SMALL trades make sure both of you is at 50% HP or lower, junglers get attracted to low health enemies

3- if you see your jungler on the other side of the map, please throw a ward and play carefully, he/she won't bail you out if you screwed up

4- if the jungler waited a while in the bush, it means you NEED to take that tower if this gank was successful, you took too much time and denied other lanes the junglers presence, you denied pressure from other lanes, therefore you NEED to create one from your lane now that you got a kill/assist by getting also a tower

5- if your jungler has devourer, don't take the big jungle creeps, that's just hurting your jungler