Write an article based on this "Choose the right means. Link it with an action. Consider what you want to highlight with your compliment. Pick the right time."
There are lots of different ways to tell a girl that she's beautiful and they don't always mean just saying "You're beautiful" to some girl. Anyone can do that. If you want to stand out, you've got to get a little creative. Choose how you want to deliver the compliment. Do you want to talk to the girl in person, or do you want to do something like write her a letter or text her telling her about how beautiful you think she is. Writing a letter is fun and old-fashioned and something very few people do nowadays. She'll definitely remember a letter telling her she's beautiful. Instead of just telling her she's beautiful, accompany it with an action. This could be as simple as giving her a flower (or an origami flower) or small, individual token when you give her the compliment. You could give her a small item and say 'I just wanted to make sure you know how beautiful you are.' Just saying "You're beautiful" is very vague. What about her do you find beautiful? Does she have gorgeous green eyes or long, thick curly hair? You should also consider inner and outer beauty. Instead of telling how beautiful she looks, say something like "I love how you manage to light up an entire room just by being you." Just blurting out 'you're beautiful' to a girl probably isn't going to do much for her or you, especially if either of you are drunk. Telling a girl she's beautiful (if you're looking to do it properly) needs to be properly timed. Try to do it at an unusual time. Most girls have been told they're beautiful when they're all dressed up for a night out. Try telling her she's beautiful just after she's come back from the gym, or when she's not wearing any make-up. It'll feel more meaningful and sincere.