Brand personality is defined as the set of human characteristics associated with a brand. Examples show that brands can have traits like safety and reliability (Volvo), being athletic (Nike), or dependable and authentic (Levi's). Products and brands are also associated with gender personas, like coffee and toothpaste being seen as masculine and soap and shampoo being seen as feminine. Colors can also influence brand personality traits, with different colors like blue, yellow, and red being linked to traits like respect, warmth, and excitement.