How to tie a Sheetbend
This is the knot for joing two pieces of string,
as it doesn't shake loose easily. If you have different sizes
of string, make the first loop in the thicker string.

Make a loop with one string.
Pass the other string through the loop from underneath.
Take this second string round the back of the loop. Pass
under the loose end of the loop string first.
Tuck the second string underneath itself, where it came out
of the loop. Keep it above the loop.
How to tie A Round Turn and 2 Half Hitches
To permanently and securely tie a line to
something, such as a piling.
When making the hitches ensure that both are
in the same direction.