you work the charted pattern, the fabric will pucker and bulge as
it is shaped by the increases and decreases. Don’t worry, this
is normal; it will be corrected when blocking.
Information about blocking can be found here and here.
M1L: Insert left needle from front to back under the horizontal strand which lies between the st just worked, and the next st. Knit into the back of this loop.
M1R: Insert left needle from back to front under the horizontal strand which lies between the st just worked, and the next st. Knit into the front of this loop.
SKP: Sl 1 knitwise, k1, pass slipped st over.
1x1 Rib (Worked over an odd number of sts):
Row 1 [RS]: [K1, p1] to last st, k1.
Row 2 [WS]: [P1, k1] to last st, p1.
Repeat these 2 rows for 1x1 Rib.