The antonyms for the phrase "talks game" can be interpreted in various ways. Firstly, if "talks" refers to conversations or discussions, then the antonyms could be "silence," "mute," or "hush." Secondly, if "game" means a competition or contest, then the antonyms can be "cooperation," "collaboration," or "teamwork." Lastly, if "game" is interpreted as playful behavior or actions, the antonyms could be "seriousness," "solemnity," or "gravity." In any case, the opposite of "talks game" is some form of stillness, cooperation, or seriousness.