I don’t know if they result in the same thing or not. I couldn’t figure out how to
sl 1, k1, then pass the slip st over but don’t take it off needle and knit into the back off the slipped st.
But the first option I know how to do. It[I] is [/I] one of those things that sounds somewhat if not totally impossible when you first hear it, but is really easy once you understand it.
Tw2 means k into the second st the k into the first st and then slip both sts off needle together.
A step by step explanation… Skip the first stitch at the tip of the left hand needle and insert your right hand needle into the second stitch just like you normally would if it were first in line, wrap your yarn around the right hand needle however you normally do to knit a stitch and pull up the stitch loop onto the right hand needle just like normal–stop right there. Don’t take anything off the left needle. Now turn your right hand needle so that you can insert it into the first stitch (the one you skipped) in the normal spot for knitting that stitch, yarn around like normal, pull up a new loop like normal, at this point you have 2 new loops on the right hand needle. Now slide both loops you have been working off the left needle like you would as you finish knitting a normal stitch.
Short version: Skip the first stitch, knit the second stitch normally but don’t slip it off, twist around so you can knit the skipped stitch normally and slip both loops off the left needle.
You start out with 2 stitches and end up with 2 stitches having knitted them out of order. This makes a mini-cable. It won’t look like much of anything until you have quite a column of them, then you start to see the effect better. I hope this helps.