Here's how to tie a figure of eight knot:
Start by grabbing a bight of rope, then bring the tail end of the rope around and behind to form a loop.
Continue to bring the tail end of the rope forward then up through the hole created by the loop.
Tighten the knot by pulling on both the working end and tail of the rope in opposite directions.
This can be used as a stopper knot at the end of your rope or to form the start of the figure of eight follow through.
Watch the video on how to tie a single figure eight