I am about to start a drop stitch vest from the Stitch 'n Bitch Nation book (pg. 145

). It is a vertical drop. And my first clothing attempt.
I have to do a big square St st and then use this pattern when shaping the neck/binding off:
DBO2: drop next st, lift up resulting ladder, k into front of ladder, k into back of ladder, BO first st, BO next st.
I am having problem visualizing the red part. I don't know what I need to do. Can someone explain it to me, please? Pretend I am 5
THANKS!!!
