Need help with [k1yf] twice instruction

I need help interms of how to do [k1 yf] twice

Knit one stitch, then bring your working yarn to the front between the two needles (as though you were going to purl, same procedure) and then bring the working yarn up and over the right needle, returning it to the back of your work. This produces an extra stitch and will form some sort of eyelet/lace pattern.

When it says (K1, yf) twice, you will do the above sequence two times.