If your behind then try to be tank and peel for the team.

You don't have to build your jungle item first. It does not benefit you in patch 6.9 with changes to the experience. Build boots on your first back and look to build any part of Guinso's.

Only split push if they have a person down on their team. If not try to stay with your team. Don't over extend if you are split pushing.

Try to stun the front line if they are engaging. If your team has a good engage try to wait a but before going in and hit up the backline. If they have huge peel and or a tank engage try to peel for your own carries.

Udyr's ganks are very strong and is a great tool to snowball your lanes or yourself early game. Once past level 6 try to farm a little more but keep an eye out on objectives and lanes.

Make sure to get level 3 or 4 before ganking anylane. You relatively want to make sure you counter jungle as well as protect your lanes and jungle. On your first clear make sure to get both your buffs and hit level 4 on the red side of you jungle. Or blue if your ganking the lane on the same side as your blue.