Responses
Because that wasn't the MC who went to the book signing (look a little more closely at their faces, they're different), that was just a random fan, the scene was meant to introduce us to the author and his charisma. The next scene opened up to the MC's sugar baby reading the author's novel. (The MC would almost never make a public appearance without presenting himself as blind.)
He def recognizes him and knows he’s not blind cuz didn’t he see him at the book signing and commented on how he’s a writer? But then does the uke not recognize the author???