You take a picture of yourself in some exceptional situation - skydiving or whatever. People always post those photos because it works - you're saying something about yourself that begs a conversation and that's what the users are there for.
Christian RudderI know that shorter messages are better in terms of reply rate. The optimal length is something like 50 characters. Characters, not words.
Christian RudderText is, in some ways, on the way out, unfortunately. There are dating sites now that are just pictures.
Christian RudderThere will be more words written on Twitter in the next two years than contained in all books ever printed.
Christian Rudder