I was once a chump in the same rowboat as you. What do you want to get out of the flowers? A date right? Guys and girls can NEVER be just friends Forget the flower crap, and a delivery man????? WTF are you thinking??

1) means you are not man/confident enough to give it to her yourself
2) she'll be like WTF Flowers DELIVERED to my house? STALKER STATUS
3) You get ABSOLUTELY nothing from that

What I would do is try to get her number and call her out of the blue and ask for a date ALONE! When you show up to pick her up, DON't I repeat DON'T give her anything, just a hug and you be on your way.

Don't give girls presents because ANY clown can do that. Plus if you do girls take that for granted.

For example if you have a lot of money(presents) you tend to buy tons of stuff and take the money you have for granted. But if you are not showered with money(presents) you tend to charish it more