Is it weird to send emails or messages to acquaintances? I met someone at a conference last summer. We had coffee once afterwards. I'm taking a class in her neighborhood, so I thought of her last week - is it weird to send her a note?

I feel like I run into this a lot. I like having a wide pool of acquaintances. I don't expect anything of them. I just wonder if I put people off by keeping in touch. Most people are not sending me random emails looking to catch up.