Adventist Youth Honors Answer Book/Knot/Two half hitches

Two half hitches
Use: This reliable knot is quickly tied and is the hitch most often used in mooring. How to tie: Pass end of rope around post or other object. Wrap short end of rope under and over long part of rope, pushing the end down through the loop. This is a half hitch. Repeat on long rope below first half hitch and draw up tight.