Read the excerpt from "The Love Song of J. Alfred Prufrock." 
I shall wear white flannel trousers, and walk upon the beach. 
I have heard the mermaids singing, each to each. 
I do not think that they will sing to me. 
What does Prufrock mean in the last line: “I do not think they will sing to me”? what is the excerpt is narrated using which literary technique?