The slip knot is a crucial part to starting almost all projects. Whether you’re making a scarf, amigurumi, or just changing colors, it is useful. To start, hold your yarn taut in both hands.
Now, make a loop with the right side above the left. (Make sure to have some yarn left on the right side.)
Now, with the right side, push it through the loop (without pulling all the way through)
Now, pull on the left side of yarn to tighten.
Now, to fit your hook to the loop, stick your hook through the loop and pull the right side.
And your done! Once you catch on, you can do it in almost no time at all. You can now start almost any project. If the pictures didn’t really help here is a short video to help instruct you: