I think we, as Hufflepuffs, are more observant of others. I've noticed this to be true in a lot of my friends. The puffy ones can always pick up on someone not being themselves, especially if it's someone we've known for a while. The non-puffy ones seem to lack this perception. But not always. Maybe I just like to blame everything awesome on being a Hufflepuff.

Also, I LOVE it when my mom uses Internet acronyms! She's started typing WTF and OMG and it cracks me up EVERY TIME. :)