This knitting demonstration is showing you a knit involved in the bee stitch cloth pattern. It calls for a stitch that you would knit into the stitch below. This is commonly referred to as k1b or knit 1 below.
The bee stitch cloth pattern can be found here. Learn how to knit into the stitch below.
2: k1, *k1 in st below, k1; repeat from * across
4: k2, k1 in st below, *k1, k1 in st below; rep from * to last 2 sts, k2
Repeat these 4 rows.