Place dance.amxx into the cstrike/addons/amxmodx/plugins folder.
If you are looking to spice up your AMX Mod X server, here is everything you need to know about finding, installing, and using the CS 1.6 Dance Plugin. What is the CS 1.6 Dance Plugin?
Pressing J during gameplay will now bring up your server's dance selection panel. Admin Settings and Customization (CVARs)
The Dance Plugin is an AMX Mod X script that allows players to execute various dance animations in-game. Instead of just holding a bomb site or aiming down a hallway, players can trigger third-person dance animations to celebrate a round win, taunt an opponent, or simply goof around during warm-up rounds.
Counter-Strike 1.6 Dance Plugin: How to Download and Install
Disclaimer: Ensure you download plugins from trusted sources to avoid malicious scripts. The links provided above are reputable communities within the CS 1.6 modding scene.