I could be wrong here, but, I think people were buying at the ask, they just bought during a dip, which helped bring EIGH back up towards where it opened.
I cant speak for everyone, but as far as where they find the funds to buy during a dip, I know I dont like to buy less than 1000 shares at a time, so if I dont have enough $ to buy 1000 shares at .11 but then it drops to .081 I will buy the shares while I can before it goes back up.