I keep a pet widow named Minka. I usually just feed her any other spiders or insects I find inside the house. This other spider, Alex, was found in my basement.
I put Alex in Minka's jar late one night and when I woke up, they were both still around and seemed to be respecting the space of the other. After watching Alex for a while, I noticed he seemed especially shy. If he sensed movement, a change of light or there was a noise he would curl up and play dead. It would take about 3 minutes for him to become comfortable moving around again. When he unfurled his legs he seemed much bigger than when he was playing dead.
I shot some video of him and Minka and then let him go out near our wood pile. We live in Oregon near Portland.