In response to these questions....do what you feel. If you feel like giving her a compliment, do it...if you feel like reaching out and touching her, do it.
I don't mean this to sound cruel, so I hope you take it for the observation it is...you sound afraid of her. I'm sure you are afraid of your actions driving her off....but your fear can be counterproductive as well....causing you not to do things that "could" show your love for her.
Reach out and touch her if you feel like doing that, especially if she's walking around undressed or half-dressed...if you sit back and wait for her to come to you, so you don't drive her off....she may NEVER come to you. Why? Because she may want you to come to her.
