Boa out of Segue ribbon Yarn

I am trying to finish a boa scarf made out of Segue ribbon yarn. I am at the point where you slip the 1st three stitches and tie them off with a slip knot. I’m not sure just how to proceed. Anybody done it before?:knitting:

I’m not quite sure I understand the slip three stitches part. Can you post the line from the pattern that instructs you to do this?