Ok so I saw a similar thing on a YouTube video and thought it could be done at Xmas. Let me know what you think, what to add etc;

You approach your target, during the day and hand her a Christmas card which simply says "to you" on it. You say " me and some friends this year thought we would give out Christmas cards to some random girls we liked the look of but tosave embarrassment we all wrote eachothers so I have no idea whatvthis says but I wanted to give it to you, could you open it and read it aloud?"

1. Do you think saying girls we like the look of works? Hows this sound so far?
2. What do you think the card should say? I was thinking of something like. "Hi, I think you are gorgeous and just wanted to say i hope you have a very merry Christmas x" that way when she reads it out you could say something like " that's really sweet but could you just read the card?" Or do you think a genuinely nice msg would work, followed by an introduction. Or have the message be completely wrong describing their looks like the wrong colour hair, bald head or something to make them laugh. Maybe push it and have it say"give me a Christmas kiss"... let me know your thoughts,
Rth