Yes! If things don't work out, ask her to pay you back for the coffee you bought her! :)

Here are some of the quick tips I can give you:

1- If you are in the cashier line and they ask "are you two together"; you can say "She wants me but I m playing hard to get" with an indifferent face (then crack a smile to her)

2- If she drops something (spoon, napkin, fork, etc) sigh and say "See.. this is why we can't have nice things.. "

3- She mentions something negative about herself: "Sory my hair is a mess / I couldnt find nice clothes for today / This zit appeared this morning and looks ugly!" quickly crack a "I wasn't going to say anything... anyways" and change topic with a slight smile.

4- Some lines you can slip in between : "you don't have to be nervous.." - I m not - "you are taking more seriously than you should.." | she laughs at something you say, or appears clumsy, or compliments you "Please try to control yourself.. " - "Slow down.. you're going to hurt yourself"
5- Order one cheesecake/brownie for the both of you with two forks. Cute , right? Blatantly cut a very large piece for yourself, leaving her the small piece. Eat with no shame on your face. This is golden, I often fight the urge to laugh myself but once I did and pieces of cheesecake showered her face.
6- Randomly include strangers around you in the conversation. This is SO POWERFUL. "what you don't brush your teeth 4 times a day??" - "no? " - turn to the guy sitting behind you two "Dude, did you hear this? She only brushes twice a day, can you believe it? " The other dude will be like whatever, what do I do, what do I say, this is awkward, I m shy, not used to this "and get back to talking to her, you may also include the waitress etc in the conversation - "asking her opinion on your girl AS IF YOUR GIRL ISNT SITTING RIGHT THERE" I've done that so many times, now the staff at my favorite coffee shop usually give her a "thumbs down" as I instructed them haha :p 7- Don't just sit at the coffee shop, don't ask her tourist questions, it's better if she is the one doing the talking than you. Have a plan of next 3 places to bounce in your head. Conveniently close locations to walk to, with interesting sights, or props. Don't ask her "do you want to... " - instead "Cmon, let's go" and hold her hand, or guide her by the waist. Next place, then the other place, lead lead lead lead. Be sure of what you are doing, where you are going and that it's the best place to go to , and you are the best guy she could go there with.

I often get strangers coming up to us and introducing themselves to me, or saying I remind them of their friend, or if I'm that famous actor etc: no I'm not. I'm having so much social proof making my date laugh while not laughing and just being cool myself, talking to people around us and making them laugh that, human psychology is making them come up to me, the man with the highest status in the place, and try to be validated, acknowledged. It's in our genes. We try to forge alliances with alpha members with very high survival value, in order to increase our survival value.