What word describes a proud, stiff, pompous walk?

What stand does an artist use to hold a canvas? A prosthesis is an artificial replacement for which kind of body part, such as an arm or leg? What protective coat does a scientist often wear? What is the protruding part of the face below the lips? What English proverb is the Spanish "No hay tiempo como el presente"? What English proverb is the Spanish "Pensar antes de hablar"? A proverb says "Make yourself all ___ and the flies will devour you." What word? A proverb says that which seldom knocks twice?