I'm no expert on state funeral etiquette, but I do feel pretty confident that the woman sitting between Justices Rhenquist and Souter shouldn't have done the big smile and wave thing, followed by the "call me!" hand sign, to someone else in the National Cathedral.

Though I did see Colin Powell give a smile and wave in an earlier shot. His was much less demonstrative, though, which is probably more fitting for the solemn occasion.