Not related to any subject but how do you tell someone you like them?

Don't tell the person, show the person how you feel.

Explanation:

I know It sounds a little awkward but sometimes you just have to show the person how you feel, reach out to the person, find out the person's hobbies and dislikes then write small note pads reminding them of how You feel but don't get so persistent because he/she might find you irritating.