"Suit Up" is a song by Jonghyun from his album "Story Op.2." The song talks about a moment of attraction and connection between two people. The lyrics express a desire for the girl's attention and affection. In the song, Jonghyun asks the girl to loosen his tight necktie and hold his hand. He wants to be close to her and asks her to close her eyes, indicating a romantic and intimate moment. He expresses his feelings and asks her to express her true emotions as well. Additionally, the lyrics mention dressing up in formal attire, such as a suit and a bow tie, symbolizing the desire to impress and look good for the person he is attracted to. It signifies the anticipation and excitement of a special occasion. Overall, "Suit Up" portrays a passionate and heartfelt plea for the girl's affection and a desire to create a strong connection between two individuals.