Answer: PAPERS
The picture contains a bunch of things cluing things from the song La Vie Boheme from RENT. See lyrics here.
Identify each of the images. When you put them in the order they are mentioned in the song "La Vie Boheme", they match up with the bottom part of an acrostic. Fill in the acrostic to get the phrase “The character proposing a toast to Lenny Bruce earlier sings this word directly before singing ‘that I know’.”
This unambiguously clues the answer, PAPERS.