Hearing something, Sierra decides that the best course of action would be not taking any action at all. At least, not yet. She stays in her position, breathing softly and listening to whatever she could hear happening in the distance. She wasn't ready to go and meet her fellow players yet, and to be honest, she wasn't even that sure if she wanted to see them at all.

So, she hides.

Now that she's gotten over the initial shock, she sort of feels like she's a secret agent or something.

That thought helps to keep her focused.