The most important thing is to try to do everything to his beloved was in a good mood, or wait until such time when all her thoughts higher problems. If she likes to be the center of attention, it is possible to arrange recognition in the karaoke bar, to sing her favorite love song, but to be better in silence, as it is very personal, and she can be embarrassed.
If a girl has a sweet tooth, in the evening in the restaurant or café, you can order a cake for her with recognition.
Even if you have no opportunity to do anything big, even if you just hug her gently and whisper the sacred words, or write on my status about love so that the girl realized that it was dedicated to her,- you will succeed – she learns about your feelings.
The most important thing in this, perhaps, sincerity is to speak what you feel, not memorized text. Do not laugh as this will only show you the love that your confession is not serious.