I look for scenes that tell a story and each time I see this particular grandmother and grandson at our corner ice cream shop they get my attention. He is about 15, enthusiastic, talkative and a bit awkward. She is calm, attentive and exudes love for him. I get a kick out of seeing them and was glad I got a seat close by so I could sketch them.
I focused on capturing their connection through their posture and gaze. He is sitting up straight, looking at her, talking a mile a minute and not too aware of the melting ice cream. She lifts her head to meet his eyes and does not seem to notice the melting mess either. I think this sketch captures something true about their relationship, as I understand it. I included the other two people and the outdoor eating environment to show context.
This is a marker sketch with color added in Procreate.