Hi (name),
First of all I want to apologize for disturbing you in writing this letter.
I just cannot stop thinking about you from the moment I saw you. I'm mesmerized by your beauty. Your sexy smile, the sound of your voice and the magic in your eyes.
I thought I am seeing an angel walking down on earth. I cannot believe my eyes. I thought I was dreaming But I was awake and in (what you're doing / location).
You probably don't know me, Let me introduce myself first. I'm (name) from (school / section / workplace).
I want to ask your permission to please give me a chance to properly introduce myself because many people have caught my eyes, but only you have caught my heart.(Name)