"What Shall I Do (또)" is a song by South Korean R&B singer Hoody. The lyrics express the confusion and vulnerability one feels when falling in love. The protagonist admits that being alone is more comfortable, but they can't help being drawn to the person they're interested in. They fear looking like a fool and hiding their true feelings, but at the same time, their heart feels chaotic because of their attraction. The repeated line "What shall I do, baby" reflects their internal dilemma and uncertainty about how to handle their emotions. The song questions whether it's worth starting a relationship that they know will be difficult, yet they can't help feeling silly for being unable to resist their feelings. Overall, the song portrays the inner conflict and confusion when confronted with unexpected love, highlighting the relatable experience of second-guessing oneself in matters of the heart.