As olaf, You will want to make sure that you keep hitting your t in the top lane. Try to target both minions and the enemy champion with it for maximal effectiveness.

The lane brushes are your friends. Use them to land your t when possible and go for short burst trades when possible. This will help you a lot when it comes to all-ins.

Avoid pushing up a lot as it will make you a primary gank target and kill you if you're against a ranged champion. Short burst trades after landing your t is the way to go.         As olaf, You will want to make sure that you continue to hit your t in the upper lane. Try to target both the minions and the enemy champion with it for maximum efficiency. Lane brushes are your friends. Use them to land your t when possible and go for short gusts when possible. This will help you a lot when it comes to all in. Avoid pushing a lot as it will make you a primary gank target and kill you if you are against a varied champion.