Sentence:  She should unfold her <WSD>serviette</WSD> and place it on her lap. It is immaterial whether she places the bread on the right or left-hand side of the cover when taking it from the <WSD>serviette</WSD>. / A gentleman should do the same with his <WSD>serviette</WSD> and bread, placing the one across his knees, and the other at his right or left hand. 
Meaning of the word marked with <WSD> tags:  A table napkin, now especially a paper one. (From late 15thC.)