Take end of rope A in the left hand and place it over the end of the rope B in the right hand.
Then wrap the end of rope A once around the end of rope B.
Now bend rope end B to the right and bend rope end A to the left and on top of rope end B.
Now guide rope end A around rope B end pull it through the oval shaped opening formed by both rope. Finally tighten the knot by pulling on both ends. now secures the two ropes.