Thanks for the tips! I am not sure about treats. Since it's a shelter and I know they've had problems with keeping the animals healthy, I am not sure if it would be allowed. It's worth asking, though. Once the cats are in the observation room (a very small closet-sized room) for a moment or two, all of their exploration is done and they are pressed up against the glass watching whatever is happening outside the room. I've used my keys before to distract them and lure them away from the glass. But, that usually only works with kittens. I hadn't thought of bringing some treats. I will ask and see if that will be possible.

Can you please explain what SLR means? Sorry, I am just very new to all of this.