IsabellaLinton wrote:
^
I'm assuming that if he introduces himself and talks to her, she'll know that he's interested. If she isn't interested in him, or if she is already in a relationship, she'll let him know that she is married or has a boyfriend. I agree that most young women who are engaged would want to wear their engagement ring, but who knows. He can't presume anything until he speaks to her. Playing guessing games or leaving a phone number are way too passive, and wouldn't attract her even if she were single.
Agreed on leaving the note. Communication of this type is one of the times where a person needs to break out of their shell and comfort zone.