When it comes to group photos, why take multiple shots? To increase the chances of getting a photo where no-one is blinking. However, I'd only taken 2 photos (to the right) and oh no, She's blinking and then He's blinking, argh! What to do??
Easy fix. Overlay one photo over the other in Photoshop, as different layers. Erase the blinking eyes on the top layer to reveal open eyes on the under layer. Hopefully there has been little position movement between the photos - that's why machine gun rapid succession photo-taking is useful.