Here are a few sentences that could come next to describe the setting:
"Elena was in the school cafeteria, surrounded by students eating lunch."
"She was serving drinks at a busy party, trying to maneuver through the crowds."
"She was in the kitchen at her home, cleaning up after a family dinner."
"She was at a coffee shop, working as a barista during the morning rush."
It depends on the context and what information the author wants to convey.