Since I started commuting, I often go to nearby Subway for lunch - it's about mile from the office - personnel got used to me, so did most of the customers
There was a funny episode though - once I just turned to the road from the parking, and a coworker in his huge pickup-cage passed me yelling something like "nice bike"... whatever.. I arrived at starbucks, locked the bike to nearby sign, went inside.. few minutes later I saw him coming in I don't know how did I pass him, but he felt kind of awkward that I managed to get there before him and told me that he was talking on the phone - that's why he was late
We had lunch together and when he offered me to load the bike in his truck I thanked him and said that I'd rather ride it