ǎi zǐ guān cháng
场：戏场。比喻只知道附和别人，自己没有主见。也比喻见识不广
明 徐复祚《一文钱》第三出：“全心即佛，全佛即人，直是饥人见饭；心不是佛，智不是道，何殊矮子观场。”
矮子观场主谓式；作谓语、定语；含贬义，形容没见识、人云亦云。
like a dwarf who can't see the game but adds his cheer to the chorus--to follow the reaction of other without opinion of his own
