message in a bottle

Eddie Diaz does not know anything about Taylor Swift. He just happens to be filming his sisters, who know everything, and he just happens to be posting the clips one at a time, and there just happens to be a string running through every lyric that could reasonably be considered invisible, unless your name is Evan Buckley.

or

While Eddie is in Texas, he figures out he's in love with his best friend, and lets his little sisters help him say so without ever saying a word.