Newton’s third law states that for every action there is an equal and opposite reaction. There must always be two objects involved in comparison to the first law. The reaction force is the force that is equal in strength and opposition in direction to the action force, which acts simultaneously on whatever is exerting the action force.
There are many ways to show this law. For example: if you push a chair in a straight line, your arm is exerting a force on the chair and the chair is exerting and equal amount of force back to you. So as you push the chair rightwards it pushes your arm leftwards.

As I swing the golf club down towards the ball the air resistence is pushing up on my arms.

Theses images show different examples of how the third law is shown in aerodynamics. In the image above: the engine pushes the exhaust back and the exhaust pushes the engine forward. And the airfoil pushes the air down and the air pushes the airfoil up.

As the the air pushes the balloon up the interior walls of the balloon out the air down.