If you start with maxing row 3 and kleptomancy runes you can solo invade the enemie´s junglers red buff by using your e to get next to him and attacking him while going back on lane to get early kleptomancy rewards.

When you´re laning you have to farm very clean because kennen is a champion who is useless a.f when you´re farm behind. So thats one of the most important things you have to do. You also can use your e to get bonus attackspeed. Also use this feature to attack towers way faster. In laning phase use your q to poke your enimie and auto attack them with your kelptomancy stacks to get advantage.