PHOTOS: What's Tom Cruise So Happy About?

Looks like all the time spent with Cameron Diaz on the set of Knight and Day is rubbing off on Tom Cruise. Tom made some silly faces for photographers in Sevilla, Spain, on Tuesday. He sure seems to be picking up Cameron's sense of humor! Or maybe it's because, as reported in the new issue of OK!, he and Katie Holmes have decided to have a sibling for Suri?