It could be that he's showing a rebellious attitude or simply not paying attention to proper etiquette. Maybe he's had a long day and doesn't care about the rules for a moment.
The sketch might depict a fat guy sitting at a table with a tired expression, papers or a laptop on the table, indicating work stress. Or perhaps he's enjoying a meal, with a plate full of delicious food.
Perhaps they are sitting on the table because it's a unique setting for a particular scene in the cartoon. It might add an element of surprise or interest to the story.
Maybe it's for some comical effect or to draw attention in a unique way.
Maybe he's enjoying the view or taking a break. It could be that the hill is a peaceful place for him.
Maybe he's tired and needs a rest.
He could be sad because he had a bad day or received some bad news. That's why he's just sitting there. Also, it might be that he's reflecting on past mistakes and feeling down.
Maybe he's on a fishing trip or just enjoying the scenery.
He could be there to relax and think about something. Or perhaps he's waiting for someone. The beach offers a peaceful place to unwind.
First, observe real feet in a sitting position to understand the anatomy. Then, use simple lines to outline the shape. Pay attention to the perspective and proportions. Add shading to give it a 3D effect.
Perhaps the cartoon girl sitting at the table is waiting for someone, looking a bit anxious. The table might be decorated simply or have some flowers. Her clothing and hairstyle could also give clues about the setting and her personality.