A middle-aged man with spectacle is passionately lecturing to a crimson brick wall. He has a wooden pointer in his right hand, extending it towards the wall as if pointing at a crucial detail. His face displays intense concentration, his eyebrows furrowed, lips partially open to let out words of explanation. His free left hand is animated, punctuating his speech with compelling gestures. His level of engagement is palpable, despite the fact that his audience is merely an unresponsive, inanimate brick wall.

A middle-aged man with glasses is fervently lecturing to a red brick wall. He is holding a wooden pointer in his right hand, extending it towards the bricks as if highlighting an important factor. His face is marked with intense focus, his eyebrows are drawn together, and his lips are slightly parted to allow words of explanation to pass. His free left hand is dynamic, emphasizing his speech with persuasive gestures. His commitment is palpable, even though his audience is simply an unresponsive, inanimate brick wall.