Seen here at a kings of leon concert in Vancouver Saturday night, Robert Pattinson and Kristen Stewart are apparently done hiding their relationship, according to Us Weekly: "They've decided to be more public about going out now," an insider...
They are not really vampires you know with super hearing, people often lean into one another to hear what the other person is saying at clubs/bars/concerts. Its a normal behavior. Still no proof of a relationship, if there is one.