What facts indicate that light has wave properties?

Reflection of light. Example: reflection of a bird in water.
Refraction. Example: refraction of light through water. Apparent refraction of straight objects obliquely crossing the interface between media with different optical density (water).
Light interference. Example: Imagine a glossy label. When viewed from different angles, it “shimmers”.
Light diffraction. The most prominent examples of diffraction are those associated with light; for example, closely spaced tracks on CDs or DVDs act as a diffraction grating. Another example: the luminous halo of the moon or stars.
Light polarization. Examples: reflections on glass, glass display cases, water surface. The simplest and most widely known example of polarization is clear sky, which is believed to be its source.