As kennen, Split push whenever your Ultimate m is down in the mid-game. While team fighting is important for Kennen, falling behind in gold and XP will make you pretty much useless in team fights.

Look to flank in team fights. Fighting as Kennen can be difficult if the enemy is able to disengage or has poke damage. To make team fighting easier, look to flank from the side.

Whenever your Ultimate m is up or whenever your team is ready, you should group with them. As kennen, If the team fight is important for Kennen, falling behind the gold and XP will make you almost useless in the team fights. Watch to flank in the team fights. Fighting as Kennen can be difficult if the enemy is able to disengage or has poke damage. To make the team fight easier, watch to flank on the side. Whenever your Ultimate m is up or when your team is ready, you should group with them.