Marcus is an older teenager who helps run a local youth sports club. Toby (aged 7) and Leo (aged 11) both attend. Leo is often distracted, but Marcus frequently shouts loudly at Leo to get him to pay attention and line up. Instantly, Leo obeys Marcus's instructions. Toby is usually very quiet during the sports club. However, at primary school, Toby's teacher has recently remarked that Toby has started shouting aggressively at his classmates when he wants them to play his games during break time. Use your knowledge of social learning theory to explain Toby's behaviour.