I was walking back from our mailboxes at our apartment complex in Brownwood, Texas. I saw three orange lights pretty close together flash one at a time. I stopped and kept looking. It happened again right around the same area. There were trees close to blocking my view, so I moved past the trees so I could see clear skies. Lower in the horizon, I saw it again, only in a different spot. 3 orange lights, 1, 2, 3, taking turns to flash one time before going completely dark. They were orange circles. I saw this happen 5 times total before I saw an aircraft that was surely an airplane of some sort flying through that area. After that I stood around looking for about 20 more minutes, saw a few more planes and that's all, nothing out of the ordinary! I know for sure that the orange lights I saw was NOT airplanes.