Exploring outside the bedroom

Today, we felt confident enough (and she did too) to venture out of the room that we'd set aside for her. I have a bedroom at the front and the rear of the house - Her room is at the front.

We opened her door and opened the other bedroom door, and stood expectantly at the top of the stairs, to discourage her from going downstairs.

it was really interesting - she'd kinda run out, go so far, and then run back in again, to reassure herself that she still can. Each time she'd go a little further. She doesn't seem to like the other room much either and even doesn't seem to like the feel of a quilt - each time she jumps up onto the bed, she jumps off again!