The Lifted Increase method is also known as a Raised Increase, and even sometimes as an Invisible Increase. “Lifted” or “Raised” because of the action done to perform it, and “Invisible” due to its discrete appearance, making it an elegant substitute for m1R and m1L.
RLI (Right Lifted Increase): Lift right leg of the stitch below the next stitch on the left-hand needle onto the left-hand needle and knit it. [1 stitch increased]
LLI (Left Lifted Increase): Lift the left leg of the stitch 2 rows below the stitch on right-hand needle onto left-hand needle and knit it through the back loop. [1 stitch increased]