New paddlers or people who don't paddle very often tend to notice slight breezes and subtle changes to the environment. They've got their "self-preservation radar" turned to full. Most of us can remember how the build up works; An increase in wind, increases the roar in our ears. We find ourselves pushing a bit harder, leaning a bit more forward and feeling a bit of a chill. We notice the cats paws cross the surface of the water, and see subtle changes in the waves.