Page 249 - Buck Tilton - Outward Bound Ropes, Knots, and Hitches 2 ed.

Continue to follow the lead of the first rope. The

goal is to create a second figure 8 knot that
duplicates but is a mirror image of the first figure
8 knot.

Figure 8 Bend: Step 4

When both ropes have been woven into one
figure 8 knot, carefully compress and tighten the

composite knot into the characteristic figure 8
shape. For the greatest strength, make sure the
standing part of both ropes forms the outer bight

at both ends of the knot.