If he is 1.80m, then similar to uncle neo and ispyyy. Best to
keep his weight between 60 to 65kg maximum. Anything more than that
is considered a little flabby for guys. Also tone and go to
the gym. Watch his diet and jog frequently and don't drink too much
beer. 
he's going jogging with his frens though. gd thing is that he
dun drink though. says that it slow his reflexes though. he's nuts
abt sports though