The big or little things that are the total opposite to Red Flags that made you think that this person was something special.
Mine: My ex boyfriend and I were on a first date. Amongst other things we talked about books and shared favourite books and authors that we liked. On our second date he gave me a book and told me to open it and it had a personalised note to me in it, signed by the author! (Distinctive handwriting so I know it was legitimate). It was really kind and even though I know it wasn't difficult for him personally to get it, it was just the fact that he did. I knew right there and then that I really liked him and we were together for years. Unfortunately, it didn't work out in the long run, but we're still friends! Even more unfortunately, I haven't met anybody nowhere near as kind as he was since. I still have the book :)