The point of this challenge is to say something to someone to get them to like you.
I'm no good with words when it comes to this sort of thing. I don't believe something you say will get someone to like you. It's what you do, how you act, your inner beauty that grabs their attention and keeps it.
And, when I say it's something you do, I don't mean making out and having sex to show you love someone or to prove to someone you're worth loving. You got to be yourself, and if they've known you for awhile, and their opinion is still the same, move on. You shouldn't waste time on someone who's mind won't be changed. You'll be letting so many opportunities pass you by.