I recently saw a magazine article listing handy hints on ending an unsuitable blind date, such as "take a newspaper to read at dinner". One of them was musical: "Get out a harmonica and play the blues when he/she starts telling you their troubles".
Herself was attracted to me by the size of my repertoire ( if not the quality of my performance -'Spaw, don't you dare misinterpret that) rather than my rugged good looks but different things work for different people. Internet "dating" is no real difference to starting off as penpals and I've known some successful marriages that started that way pre-'puters.
RtS