[Your letterhead, if desired; if not, your return address]

[Date of letter-month, day, and year]

[Recipient's first and last names]
[Company name]
[Street or P.O. box address]
[City, State ZIP code]

Dear [recipient's name]:

Happy Valentine's Day! I'm just a little (or a lot!!) nervous letting you know this, but here goes! In case you maybe have not noticed, I have been really interested in you for the past few months, ever since we met in science class. Yes, you have a secret admirer! You are obviously a very special person, and I would really like to get to know you better. What do you think? I have a hunch you might feel the same way I do. If so, let's talk about going on a real date sometime soon, maybe even a Valentine's Day date.

Happy Valentine's Day,

[Signature]

[Sender's first and last names]