If I see them biting away at another cotton candy stick I'll turn sicken on the spot.
How can you never remember the name?
George tells Lillian that he will become sick if he sees the Sakkaros eating another piece of cotton candy. The reader can infer that something is strange about the Sakkaro family while the Wrights do not suspect anything out of the ordinary.
George refers to himself as "gifted" when Lillian asks him how he can never remember the names of their neighbors. However, what he really means is that he is forgetful.
George offers Mr. Sakkaro a hamburger, thinking he would accept, but Mr. Sakkaro actually responds by shaking his head and looking grim.