I’d say Bashful and Grumpy are depicted as opposites. Bashful has the body language of hiding himself behind his beard and not making direct eye contact, and turning red with embarrassment, while Grumpy is direct in facing Snow White and crossing his arms across his chest. Also Bashful seems to fumble when trying to speak, while Grumpy makes dismissive noises, and has an agressive, disapproving, and impatient tone. Bashful is self- conscious but has a sweet nature, and Grumpy is not ashamed to have no manners. I think it’s cute how Snow White is gentle with Bashful and then playful and pokes fun about Grumpy’s disposition.