Hydrophobic, the opposite of hydrophilic, translates into “water-fearing”. Hydrophilic molecules have no affinity for water, and usually create droplets when placed in water. Hydrophobic molecules are nonpolar, and cannot create hydrogen bonds. The leaves shown in the picture have a cuticle layer, which contains a waxy hydrophobic substance. This is what causes the water to sit on top of the layer and form droplets.