「俺焼き豚頼んでないですよ」
店主であり違法改造バイク夢五萬のライダーである高田くんのお兄さんは、菜ばしを“サービス”という形に動かした。"I did not order pork loin."
Takada's brother, who is the shop owner and rides an illegally modified motorcycle "Dream50000", said the chopsticks were "service" and moved them to that shape?
What does that bold part mean?