I did this one yesterday on a girl I have the hots for, but can't date because of logistics.
Me: "Jill, I brought you a present."
Me: "Yea its right here in my pocket" Make a big show, by reaching in to my jacket pocket and pulling nothing out, and I am giving her the finger.
Me: "Here it is!" As I am giving her the finger.
Me: "I wanted to say Jill, that I really care about you! A lot in fact, and I can't stop thinking of you" Mean while the whole time I am still giving the finger. With a big smile on my face.
Her: "Well I have one for you too"
Me: "Well lets see it!"
Her: Reluctantly gives me the finger and is smiling
Me: lol "Awesome!"
Me: "Well see you later"
Her: lol "ok" lol