[{"role": "user", "content": "I'm trying to learn Italian and I'd love to know how to express the idea that I'm familiar with someone visually, so could you please translate 'I know him by sight' into Italian for me?"}, {"role": "assistant", "content": "The translation of 'I know him by sight' in Italian is 'Lo conosco di vista.' This phrase is used to convey that you recognize someone when you see them, but you don't actually know them personally or haven't had direct interactions with them."}]