Don't talk on your self phone when other people are around and you're not with anyone else physically. Half a conversation is twice as bad, or any way worse than the full conversation because we are constantly trying to figure out what was the other half. If i were seen eating alone, would it make me feel bad? Without kind of an alibi, as it were, like if you're travelling, you're like, well, I'm alone. And then that would make me feel a little bit uncomfortable. What advice would you give someone who wanted to do something similar but didn't know where to start? Would you call against your own advice? You would never go to a restaurant
Also: why do we dislike being alone in public?