““David: :) David: That was my very first emoticon. Or emoji. Must Google to learn the difference. Me: Finally something I know and you don’t! David: There are lots of things you know and I don’t. You obviously have a very high social IQ, for example. Me: Thanks, I guess. You obviously have a very high IQ IQ. David: 168 at last check. Me: Sometimes I can’t tell if you are joking or being serious. ””