John Gill Commentary Ruth 3:6

"And she went down unto the threshing-floor, and did according to all that her mother-in-law bade her." — Ruth 3:6 (ASV)

And she went down unto the floor
From the city of Bethlehem, from her mother-in-law's house there, to the threshingfloor of Boaz, which was at some distance from it, and lower:

and did according to all that her mother in law bade her ;
both before she went, and after: she washed and anointed herself, and put on her best clothes before she went down, and when she was there took care not to make herself known to any, especially to Boaz, and marked the place where he lay down after he had supped.