Definitely talk outside. Holding hands is good. If there is an understanding, hugs are wonderful. You can hug people that you would never kiss! It releases so much tension without crossing that sex line.

Don't ask her if she likes you, this traps her into a meaningless answer, but IMHO you can tell her you like her, this doesn't require her to answer.

By all means give lots of compliments, but make them very mild or you risk emotional overload. Better to compliment her clothes or the decor of her room, or her choice of music or books or a picture on the wall rather than how she's a cool person or has a hot body. You want her to melt, not evaporate.

Accept the fact that you have something she wants and she needs your help to make it come true. Not what do I have to do to get her to put out, but how do I help her to express her own desire to do so.

Be willing to believe your insticts, the body language. When I met my wife, we were leaving a concert and I was walking in front. I stepped aside for her to pass and made a "ladies first" gesture with my hand. For an instant, I thought she reached for my hand and then pulled back. But I didn't believe it.

Later she told me how badly she had wanted to hold my hand that day. Trust your gut feeling.

If I were you, before sleeping in bed with her, I would come right out and say, "I feel a little weird about sleeping in your bed, I'd feel better if we had an understanding that nothing's going to happen." Then you won't lie there all night worrying what to do, and you won't wake up thinking that you blew your chance. The worst case scenario is that nothing will happen and you will wake up with trust and a special bond. And you will be sure to be invited back!

"I'm going out for some fresh air. Join me?"

If you hold out your hand, you break the ice without actually touching her first. Then she will take your hand.

In a business handshake (sorry i guess thats not very romantic) when you put out your hand the other party will almost never refuse the shake, unless something is drastically wrong!