How would I go about seeing what language a player uses?

Help and Feedback Scripting Support
#1

How would I go about seeing what language a player uses?

#2

You can use LocalizationService and get the locale id from their Roblox client.

Example code:

local LocalizationService = game:GetService("LocalizationService")
print(LocalizationService.RobloxLocaleId)
--//Prints en-us for me