This work investigated how robots with different service style in food industries are perceived by customers. We analysed responses from 53 participants who evaluated the video interaction of a robot waiter while taking orders and that delivered a customer service experience based on different styles of a service robot interaction (service-focused vs. social-focused). Results indicated that social-focused robots are perceived to have more natural and pleasant behaviours compared with service-focused robots, and therefore better accepted by customers. Social-focused robots were also perceived as having a more persuasive effect on the users' choices. In contrast, service-focused robots were perceived as hasty, and participants did not feel in charge of the food choices to order.