To auto-sync emotes in JJS, the clearest public guide I found is a mod called sync emotes : target a player with /select [name], enable it with /8 sync, and then wait for that player to emote so your animations line up with theirs.

Quick Scoop

  • It works as a toggle, and the default state is off.
  • The idea is simple: pick a target first, then turn sync on, then let their emote drive yours.
  • A community wiki also notes that the emote wheel is opened with the dancing person icon or B on PC, which is useful if you need to trigger emotes manually while testing sync.
  • One video guide for JJS says emotes are managed through the shop/inventory system and assigned to slots, so you may need unlocked emotes before syncing anything useful.

Practical steps

  1. Open the sync-emote feature.
  2. Target the player you want to mirror with /select [name].
  1. Enable syncing with /8 sync.
  1. Have the target use an emote, and your character should follow along.

Things to check

  • Make sure the player you select is actually using an emote, not just standing idle.
  • If nothing happens, verify that your emote is equipped and accessible in the wheel.
  • If you’re on mobile or console, the emote-access controls differ from PC, so the testing flow may feel a little different.

Source note

The available public info is a mix of a GitHub module page, a JJS wiki entry, and creator tutorials, so the exact behavior can vary by version or game setup.

TL;DR: use /select [name], then /8 sync, then wait for the target player to emote.