A random selection of some of my favourite Riker moments:
From The Price: when he tells Devvonami Rhal that he's happy for Deanna.
From A Matter of Honor: when he beams back to the Enterprise, apparently not having to learned when to duck.
From Violations: when Deanna is unconscious and he's at her bedside telling her that he misses her.
From The Outcast: when he asks Deanna if his realtionship with Soren will change their relationship.
From Inner Light: when Picard collapses on the bridge and he tries to catch him before he falls.
From Nemesis (film) when he kicks the Viceroy off the precepice and tells him that hell is dark (or it would have been if he had).
From Measure of a Man: when he spots Data's off switch and the implications, then realises the real implications of that.
From Suspicions: when he tries to warn Beverly against her course of action.
From The Price: when he tells Devvonami Rhal that he's happy for Deanna.
From A Matter of Honor: when he beams back to the Enterprise, apparently not having to learned when to duck.
From Violations: when Deanna is unconscious and he's at her bedside telling her that he misses her.
From The Outcast: when he asks Deanna if his realtionship with Soren will change their relationship.
From Inner Light: when Picard collapses on the bridge and he tries to catch him before he falls.
From Nemesis (film) when he kicks the Viceroy off the precepice and tells him that hell is dark (or it would have been if he had).
From Measure of a Man: when he spots Data's off switch and the implications, then realises the real implications of that.
From Suspicions: when he tries to warn Beverly against her course of action.