You break the awkward silence with another question. An unrelated question. That question. The one you just thought of. What is her deal? She's a student. Duh. She's a grad student. Duh? She's studying some kind of Math you blocked out in college. Wow. She doesn't go out to party or anything. Sure. She doesn't like talking about herself with strangers. Okay. You tell her that they don't seem to come stranger than you when she pauses. She extends the pause, but doesn't let it progress into full blown silence. No way would she let something so convenient occur. She instead asks you about yourself again. This time just a generic one. You tell her you're boring and you don't do much other than study and hide in foliage. She laughs at you. Well maybe your joke. But you're pretty sure it's you at this point. You get the feeling that she knows you're lying but doesn't really care. It's somewhere between looking down at you and finding you amusing. Or like finding you amusing the way people find comedians or clowns amusing perhaps. Is that a good or a bad thing? Are you a clown or a comedian? She's still there. You finally add that you may have mistakenly overheard something that happened in the room over behind you and ask if she wants to hear. She said she was there. You act like you acting unsurprised because you were surprised but not really because you're unsurprised because you knew that. She buys it. Or your acting looped back in on itself so much that it doesn't matter if she bought it. She asks what you thought. Not your problem. Wow. She expected something else because she started laughing again. You really need to look into that clown/comedian thing soon. At this point, you think that it's a good time to not be here in a location (physically) where you can get caught snooping around. Not to mention that you're in a position (metaphorically) that you find uncomfortable and stressful. But you're stuck (socially) in the conversation which is keeping you there (geographically), so you need to think (critically) to escape (literally) from this whole thing (shortly). You open your mouth to speak but realize she's been talking for the last thirty seconds about something. You have no idea what, but you just agree with her and say you've got to go. She asks for your name. You should...  Run now.  Tell her your name.  Change the topic to the next thing you notice.