Final answer:
The evidence from Ramirez's essay that best supports the idea that she had difficulty communicating is her description of a frustrating hour of gestures, confused smiles, and headshaking as she looked for someone who spoke English at a train station.
Step-by-step explanation:
To support the idea that Ramirez had difficulty communicating, the best evidence from her essay is when she describes a frustrating hour of gestures, confused smiles, and headshaking as she wandered the station looking for someone who spoke English.
This evidence illustrates the challenges she faced in trying to communicate with locals who didn't understand her language. Ramirez also mentions that her Japanese is nonexistent, further emphasizing her difficulty in communicating in that situation.
Therefore, the evidence of her struggles with gesturing and searching for an English speaker supports the idea that she had difficulty communicating.