Salang black is the most general expression:) ~ ~
Several expressions of "I love you" in Korean:) ~
1? 7? 9? 6? 6? 7 (pronounced sa lang hei) is the most common expression, so you can say it.
1? 7? 9? 6? 6? 7? 3? 9 (pronounced sa lang hei yo) is an expression of respect.
1? 7? 9? 6? 6? 3? 9? 9 (pronounced sa Han Lang Da) is a very masculine statement, which also feels like a small blank, but it usually means masculinity.