"Hello" is a poignant piano ballad based on "soul music". The lyrics of the song focus on the themes of "nostalgia" and "regret" and express these contents in a conversational way. Showing Out continues the theme of Adele Adkins' single "Someone Like You" reflecting on failed relationships. The lyrics revolve around all of Adele Adkins' past relationships, ranging from friends and family to former partners. The lyrics "Hello from the other side" mean another aspect of growing up, which takes a person from his late teens to his early twenties.

On the other hand, if "Hello" isn't a terrible ballad, Adele Adkins is at her best. Adele Adkins brings out the emotional love story in this song, and the lyrics work best when a combination of amplifying personal details, matching the power of the singer's voice, and restraint as it captures captures the grip of memory held within every listener and combines it with Adele Adkins' own drama. On the other hand, the style of this song and its MV is similar to the single "Hello" of the same name by soul singer Lionel Richie. "Hello" begins with a brief silence, then the soothing piano sound gradually sounds, and a magnetic and penetrating voice sings the first line: "Hello, it's me". Then, accompanied by a slow but powerful rhythm, this voice sings softly and powerfully like the warm sun in winter in the rising and falling melody. Sometimes quiet, sometimes high-pitched, sometimes lingering, sometimes unrestrained, in that extremely charming voice, a girl named Adele Adkins tells a story that originated from her. Like all her songs, Adele Adkins poured her true feelings into the song.

Adele Adkins integrates all her emotional experiences into her songs, and then tugs at the listener's heartstrings very naturally. However, unlike "Someone Like You", this time she did not sing about "breaking up", nor was she overly immersed in the "frustration" experience in the past. Instead, she sang like a "experienced person" who has become a proficient "experiencer" after years of baptism. The tone of voice is like talking on the phone, telling memories that are now open and have passed. Adele Adkins sings about memories. And this kind of memory means saying sorry and cherishing it calmly and generously, shaking hands with the passing time, and reconciling with the painful memory.