That should be put into the characters behavior script (Public\%modName%\Scripts\%name%.charScript) and not into the story scripts.

If you're looking for a way to do this in story scripts:
Code
CharacterLookAtCharacter(_Character, _TargetCharacter, 0);
// or CharacterLookAtItem(_Character, _TargetItem, 0);
CharacterPlayAnimation(_Character, "use_activate", "");