This method is good for adding stitches to a work in progress.
There will be quite a lot of slack between the stitches on your first knitting row after the cast-on. This will work itself out, so don't worry about it.
Knitting can be addictive!
Step1
Select yarn and knitting needle. You only need one needle to practice this cast-on.
Step2
Make a slip knot and slip it onto the knitting needle.
Step3
Follow the instructions on the video for this easy cast-on method, the backward loop method.