Cast on 12 sts with Click for base edge and st st 2
1st inc row K1, (inc 1) three times, K3, (inc 1) three
times, K2. [18 sts]
Whithin a row of directions you normally repeat what is in parentheses. the direction of (inc1) means they want you to increase into the stitch or Kf&B - knit the next stitch leaving it on your left needle and knit into the back of the same stitch, which will result in 2 stitches where there once was one.
1st inc row: K1, kf&b, kf&b, kf&b, k3, kf&b, kf&b, kf&b, k2.
this will result in 18 stitches and your ready for next row.
hope this helps