Selvedges, help!

I’m having a nosy at this pattern

But these instructions have me totally confused:
With color 1:
CO 3 sts
Row 1-8: Row 1-8: K
Next row: Next row: K all sts, do not turn, PM, pick up and knit 5 sts down selvage, PM, pick up and knit 3 sts from
CO.

Can you help me please?

The instructions begin with a garter stitch tab which will become part of the shawl at the back of the neck. This video makes sense of it:

Lovely name and shawl.