Deep in thought

My son Jae is in the middle of doing his GCSE exams at the moment managed to get a shot of him on the laptop not sure if he is busy doing revision or playing games but he looks to be deep in thought . We keep having to nag him to get on he says he is. Told him his results will tell if he did revise enough . Only 5 more exams to go. Fingers crossed for him as he plans to carry on in 6 form.