"小伙子" (xiǎo huǒ zi) 是中文俗语，指年轻的男子。在餐厅里用英语表达可以说 "young man" 或 "young fellow"。

"Young man" 是英语中常见的称呼，用来称呼年轻的男子。例如：

"Could you please pass the salt, young man?" (你能把盐递过来吗，小伙子？)
"That young man over there is my son." (那边那个小伙子是我儿子。)

"Young fellow" 是英语中不太常见的称呼，也用来称呼年轻的男子。例如：

"Are you enjoying your meal, young fellow?" (你喜欢这顿饭吗，小伙子？)
"That young fellow over there looks famipar. Do you know him?" (那边那个小伙子看起来很熟悉。你认识他吗？)