Sophocles likes Electric type Pokémon and is a science nerd with a vast knowledge of technology. When he gets into something, he analyzes the subject very thoroughly.
System analysis is a main field of study for him as he is often programming things to keep track of his life. He loves collecting information for his Togedemaru nurturing program as it is of great interest to him and keeps his Togedemaru in good health.
He enjoys the ice cream at the mall and considers it the best in the entire Alola region as it's made from generous amounts of both whole milk and high grade vanilla beans plus it's handmade, so he gets it when he can because it's available in limited amounts.