Third law of motion: It states that to every action, there is an equal and opposite reaction. Action and reaction always operate on different bodies.
Example:
When a man jumps from a boat on to the bank of a river, then he pushes the boat behind with his leg (action) and the boat pushes (reaction) the man in the opposite direction. Because of this, the man move towards the bank of the river and the boat moves away from the bank in the opposite direction.
