I took this shot at an armed forces exhibit on the Mall in Washington, DC. There was a huge tank of water for demonstrating high-tech underwater gear. This little girl was fascinated by the man with the gigantic head with hoses coming out floating around inside. After a minute she walked up and put her hands against the glass. The man saw her and did the same thing from his side. Every once in awhile I get really lucky and manage to catch a moment like this.