Why did galarza feel he had to decide immediately wheather miss hopley was a possible friend or a menace?

Galarza felt compelled to make an immediate decision about Miss Hopley because he was navigating a situation filled with uncertainty and potential danger. His instinct for self-preservation and the need to establish trust quickly were heightened by the circumstances he faced. Being able to identify her as either a friend or a threat would help him navigate the social dynamics at play and ensure his safety. This urgency reflects his desire to maintain control in a precarious situation.