I went on a few dates with a woman I was interested in at the time. After the fourth date, she decided we should just be friends, which I was okay with. That happened about a month ago. Since then, we've hung out several times a week (3-4 times a week), which I've enjoyed. I'm no longer interested in her romantically, but I do like being her friend.
However, whenever we're alone, she seems to get uncomfortable. I think she may still believe I am interested in her. I've tried to dissuade her of this opinion by going on other dates and trying to be as casual as I can around her. I haven't outright stated I'm not interested in her anymore, because I figured that would be a really rude thing for me to say.
Typically, when we hang out, we're at her place. Normally, we watch a movie or TV series. If we're not doing that, we're typically playing a group game with some friends. I've noticed when we're watching a movie, she'll switch couches, get up and eat something, etc. She also avoids physical contact, like hugs and things like that.
Question: What can I do to help make the situation less awkward for her? I really enjoy our friendship and the fun we have together.