She decided to keep it small. "They didn't look at me weird until that talk," she thought. Although it felt like an invasion of privacy, the reasonable first step seemed to be listening in, to find out what they were talking about.
Felicity went through what she knew. "Jennifer went to the bathroom... Came back for Lucy... Lucy got the others, then when they came back, they had that look." The tomboy thought for another moment, "Maybe I'll learn what happened if I hide in the bathroom?" The thought felt even more like an invasion of privacy, but she didn't want to ruin her friendship with the others, and this seemed like the best way. And once she knew what she did, she could try to make things better.
Her mind set, Felicity set the time back 20 minutes, giving her enough time to sneak into the bathroom before Jennifer. There was also a choice on if she wanted to take her past self's place, or go back as she was, something the girl supposed was for longer-distance time travel.