For reference, Look at your shoe from your point of view perspective.
The shoelace on the left is the blue end and the one on the right is the brown end.
Start with a left over right simple knot.
Now start with the loop on the right side.
Take the free-end lace and bring it around the blue lace, going behind the right loop.
Going behind the loop is the KEY.
By bringing the lace around the loop towards you, rather than away from you allows the knot to lay horizontally.
With the left lace now through the gap, hold both loops and pull them in opposite directions.
Continue pulling on the loops until the knot is firmly secured.
Ensure the knot sits in the center and the shoelace lengths are even. That's it!