Walking out of local retail establishment, heading for my car. Stepped outside the doors, and two other people were standing there, looking up, talking. I looked up, and saw the object they had been observing for several minutes. They thought perhaps it was a remote control craft. I thought so at first, but the longer I watched, the less it became apparent. The object hovered overhead. No sound. It held its position without dropping altitude or any corrections at all. There were four lights--two green and two red, with the red flashing to white and back to red over and over. After several moments of just hovering, it turned round a couple of times before rising in altitude and taking off toward the northwest. I went around the corner of the building, and watched it take off like as streak before it disappeared. Surprised when I saw it. A bit of a sense of dread, disbelief. But I did watch and tried to track it when it took off. I lost sight of the object when it took off.