Once again, this is one of those things that I know what the literal difference is between the two, but I still a little shaky about what the difference really means (if that makes sense). If someone could explain it. Also, here are some examples that it would be great to translate and tell me why it is accusative and dative and why (object of the sentence is in blue).
"Look at him!"
"Give me those books!"
"I never understand him."