look dude
just keep it simple. if she agrees to the date, swing by the flower shop, get a single rose tulip, get them to cut the stem down, put it in your inside jacket pocket, and when the timing is right during the date, reach inside your pocket and give it to her smiling with a 'happy valentines day slut features' (replace slut features with her name)

then take her for ice cream and put it in her bum

and of course post the pics and video on gfy

You were doing so well until you got to the the end :1orglaugh