Don't light a cigarette when you meet the boss; you'll start off on the wrong foot.

见老板时不要点烟，要不然，你和他一开始就会处不好。

So Rose doesn't want to start their marriage off on the wrong foot by displeasing her parents.

所以罗斯并想惹父母不高兴而使他们的婚姻没有好的开始。