Another two strand knot to add to your bag of tricks
Take the right hand end of your cord over itself to make a small bight and . . . .
. . .bring the other end up through the bight to make a loop.
Bring the end under the right hand side of the loop
Then bring the end up through the bight formed in step 1. You are now forming a second bight.
Now bring that end up through the second bight to complete it. Note the oval shaped space between the bights.
Bring the left hand end down through this oval
Flip the loop up (left) and bring the right hand end down through the oval.
Grap the loop in one hand and the two ends in the other hand (close to the knot) and pull apart. Then gradually tighten