﻿Emotes are a method of communicating in a non-verbal manner.  To open the emotes menu press [R1], use [UP][DOWN][LEFT][RIGHT] to navigate the menu and then press [CROSS] or [RIGHT] to have your character perform the chosen emote:

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While most emotes happen only once, a "Dance" emote will continue, a "Pose" will be held and a "Sit" will remain until you cancel it by moving.