What about that scene where Eragon and Nasuada communicated through the scry? Eragon was at Farthen Dur for Orik's coronation and he scried Nasuada after Saphira got to him to let her know everything went well and to request to go to Ellesmira. At the end of the conversation, Nasuada pressed her fingers to her lips and pressed those lipped-fingers to the mirror for Eragon, then she left, then Eragon ended the scry. What was that? I think is was a kiss.