Didn't you hearthey are adding actual dialog options in the for of emotes.
You will be able to emote in response to anything that is said to you during conversations and the npcs will react accordingly.
English
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[i]Your guardian finds Cayde's lifeless body lying in the rubble like a thoughtlessly discarded piece of trash.[/i] *Selfie emote* Ghost: "W-What the hell are you doing!? He was our friend". *Salty emote*
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Like a game of charades between you and your ghost. You gesture and he tries to figure out what you’re saying so he can explain it to the NPC.
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Love that Charades commercial with the sloth.