The tree is up, and Olivia is doing pretty well. Our tree is huge (and wide) and there is really only one place to put it in our small living room, so we are forced to deal with the reality of teaching Olivia to stay away from the pretty tree.
We spent the first several hours with the tree saying, "No, Olivia...pretties...just look, no touching!" So now, she walks up to the tree and points and says "Nooooo!" She says that, too, when she's doing anything she thinks she's not supposed to do. (She knows, and she waits until we are paying attention to actually do such things. She stands there saying "No" to get our attention.")
I've been letting her touch or point to the tree today because I'm trying to get a good Christmas card photo. And then she started pulling off the ball ornaments, so I think we are going to have to go back to "No".