haha oh man the old, " I LOVE WHAT YOUR WEARING"
i think with this shell presume your somewhat gayish and thats why shes sticking around
Here's the thing with daytime spontaneity, while wittish, the girl can sometimes detect something up with body language (which i hope you have covered)
BUT
Negs are a biggggggg thing here, you have to use palm sweat tricks after being all like "oh im sorry how rude of me my name is..." and go for the hand shake and the whole thing.
If your looking for more situational you can use the article of clothing but the big mistake here is that men are all like "OMG WHT UH CUTE DREESSS WHERE U GET IT" like you care, dont act gay if you use this tactic, act mesmerized.
Always act like "I gotta go, soon, this is just a little chat" always body swing away from her, NEVER FOLLOW HER, if she has to go drop the set and move on.
just a couple of tips for your 0 post.
good luck
Fender43