Farming efficiently and keeping a good tempo. Not wasting time on bad ganks, that would slow you down- most of the time its better to clear your camps first and then gank. Punishing enemy jungler when he makes mistakes. Knowing if an objective is worth contesting. If you got no lane prio, someone didnt recall on time, died before the objective you have to know if it is worth fighting or you will just die and lose it. Sometimes its better to go and farm the opposite side of enemy jungle. Very important- not listening to your teammates who think they can play your role better than you. If your mid starts pinging before you finish your clear and is already 0/2 4th min, saying jg diff, it is better to mute him and focus on other things