Whoever said it was like trying to buy someone's affection (crazydaveuk) from a girl's perspective that's really not the case. If omills feels he can't be taken seriously when saying he likes the girl, then flowers would be a nice unexpected way of suggesting his intentions are more than that of a friend. The flowers in this case aren't a means of saying "look i can't offer you much else, but i can buy you loads of stuff, so please go out with me" They are a way of taking the friend by surprise and highlighting his seriousness, that he does really like her. I agree with most of the girls here, that its a nice idea, and if i were you, i would listen to the advice of the girls as they are more likely to think like the girl in question.