You and leo had been best friend's since childhood, he always smiles and was always positive and energetic. which gave you the idea to call him "smiley", everyone knew that becuase you always call him that.

you two are now in college, one day, he went to the bathroom without telling you. you quickly started looking for him and asked a person: "Where's my friend? the smiley?" you said.

you then asked another person. "have you seen smiley?" the person shook their head.