Ridiculously simple TD 2-7 question

[youtalkfunny]

I've only been playing a week or two. Read DN's chapter in S/S2, but I'm not sure where he stands on this question.

I'm dealt K7632.

Clearly, I throw away the K. My question: Keep the 6, or muck it?

I just don't think 87632 is worth anything.

DN seems to love hands like 732xx, and seems to hate 6's.

Bottom line: Draw one to the 7632, or draw two to the 732?