"When it says, "K6, k2tog" ...is this saying to K5 and then knit the last two together...counting as 1K...with a total of 6? "
Not on the first round, but after that yes, you'd k5, k2tog, k11, k2tog, k6. You are supposed to have 2 sts less every decrease row, that does the shaping. The dec row is done every 4th row, so you do 3 rows in between them, so you have 4 dec rows.
I'd do the decs differently though - on the 2nd dec row, k6, k2 tog, k10, k2tog, k6. Then do 3 more rows of st st and dec again - k6, k2tog, k8, k2tog, k6, and so on, until you have 20 sts on the needle. Maybe it wouldn't come out right though, but that's the general idea.