What size?

    A man walked into a dress shop and told the clerk he wanted to buy a surprise formal evening gown (礼服, 睡袍)for his wife.
    "What size?" asked the clerk.
    The man shrugged¹ blankly.
    Trying to help, the clerk inquired, "Well then, what are your wife's measurements?"The man thought for a moment. "Small, medium, and large and in that order."

1 shrugged   

vt.耸肩（shrug的过去式与过去分词形式）

参考例句：

• Sam shrugged and said nothing. 萨姆耸耸肩膀，什么也没说。
• She shrugged, feigning nonchalance. 她耸耸肩，装出一副无所谓的样子。 来自《简明英汉词典》