Love knots are also known by many names including reef knots, granny knots, and square knots. Histories of the knot are linked to Celtic and Arabic cultures where young lovers used the knots to send secret messages to each other. The knot was thought to symbolise the inseparable joining of two hearts. The knots have been used in jewellery, crochet and as a teaching tool as the basis for forming more complicated knots.
Lie the two ropes (or strings) parallel to each other.
Cross one rope over top of the other then tuck it back under. At this point you should have one simple twist of the two ropes.
Take the bottom rope and bring it over the top of the twist. The two ropes should now resemble a U shape with a twist across the bottom.
Fold the two ends towards each other and repeat Steps 1 and 2. This forms the square knot, which is the most commonly used form of love knots.