Motorcycles are required to have a headlight that illuminates when the engine is running and the motorcycle is in a forward gear. If your bike does not, turn on the headlight when riding. This improves your chance of being seen by other drivers. One study showed that motorcycles are seen one and a half times better when the headlight is turned on during the day than when it’s not.
The headlight helps, but it’s not the whole answer to the daytime motorcycle visibility problem. The headlight is most visible from straight ahead of the motorcycle. From an angle, it doesn’t look very bright and can’t help much. From 24 the side and rear, of course, it has no effect at all. Tail lights aren’t bright enough to help much during the day, either.