"Firmly press the tip of the cord onto your needle (~1 cm) and start sliding your knitting on or off the cord and remember to check that your joint is secured all the time.
When your stitches are in place, then gently remove the cord from the needle by pushing it off with your fingertip or nail, do not pull the cord off.
Just pop it gently like an expensive champagne cork." The Knitting Barber