it might be a handsign that is an acronym standing for "I Love You." It is a combination of the ASL fingerspelled letters "I," "L," and "Y." It is called the ILY sign. The typed letters "ILY " are often used as a valediction (farewell statement) in romantic emails, IMs, (instant messages) TTY (teletype) conversations, and other text-based correspondence.
whay if someone in the crowd did this to them to play a trick on them setting them up and them later they use those photos to say "oh, hey look, Bush and his wife are evil. look at their hand signals."
i agree there is not enough info here to say if what is said is true. by the way both bush and his wife are looking the same direction. Im not defending anyone here. im just pointing something elst out that we might not have considered.