I usually can tell when one is coming on, because lights start to look really bright to me.
The lights had started to appear when die came back.
Within a few minutes, the light would start to fade.
A small red light started to flash on the Thing.
We were coming to the end of the day, and the light was starting to fade.
Quickly the lights start to thin as we approach the section's far end.
When the light started blinking, Mother was the first to speak.
The lights were starting to come on in the buildings all around us.
Anyway, a few years later, the lights started to appear.
The little red light started to glow on the hand guard.