This is interesting to watch. I believe the opening Bid price was .041 or .042. It's now .0501. Sellers are realizing they 'll have to do better than their initial bids. The Bid price increased by 8 or 9 tenths while the Offer stood firm. Sellers are reluctant to sell. I believe if I had an offer out there of .0637 and saw this activity(or lack of it) I'd be tempted to pull my order. The action on the Bid price might eventually put pressure on the Ask.

An hour into the session and no activity....