The question you have to ask yourself then is, what would you want the women at this knitting club and the knitting community as a whole to do to make you feel less awkward and able to fully enjoy yourself?
The answer to this question is painfully simple: to be reached out to and actively included. If you've already made the step to go to the knitting event, you've already done something very courageous. The people there have somewhat of a social obligation to meet you 3/4 of the way there (seeing as you've already gone those 3/4).
That's what I try to do whenever someone (of any gender) wanders closer to the gaming table. I daresay that I do this more than my opponents and other people around try to do. And, honestly, I think I should do more, but I'm usually also in the middle of a game, and I'm unsure how I could/should do more to integrate that person. I guess I gauge their level of interest and go from there.
With women, I also don't want to go so far that my inclusiveness is mistaken for more than just trying to be inclusive. I try to bring up the fact that I'm married fairly soon in such a way that feels natural to the conversation.