Sometime after eating diner me at age 7, my cousin age 7, my sister age 9, and my sisters childhood friend/ neighbor age 8 were outside the front of my cousins house playing tag when one of us (I'm not sure which spotted it first) looked up and pointed. What I remember was a cigar shaped craft with lights on the bottom. It didn't move, it just sat there like a parked car. No noise came from it, I felt it was watching us. The only thing I can remembering us saying to one another was, what is it? This was the city of Boca Raton, FL 1978 and where the house was located to the west was a lake and railroad tracks. The UFO was probably about 4 to 500 feet above the railroad tracks. Before we knew what was going on in the blink of an eye it took off SE. We all ran in the direction it went which took us trough the house and into the backyard. I remember the house full of adults sitting around having coffee and talking. When we stormed through the house yelling and excited ( not scared) our parents jumped up asking what was going on, we told them and as you can imagine the laughter ensued. Who was going to believe us, we were just young kids. The only evidence was a green trail left behind which showed the direction that it went. I always look up at night hoping to see something again but it's been almost 40 years now and no luck so far.