If they're underdressed all the time (I.e. including running to the store in a pajamas at 1:00pm in the afternoon) then they don't care about themselves and they probably don't care about a lot about appearances or much else in their life.
Based on a LOT of these responses, you all would come to completely wrong judgements about me!
For example, we already know I get dirty fingernails. I also do not wear make-up, or do my hair, or wear fancy shoes or clothing OR jewelry. I walk really fast with a purpose, and I wear quiet shoes or go barefoot - which means my feet are usually dirty. I have never had a pedicure in my life and I never plan to.
I have gone shopping in the middle of the day in my flannel PJ bottoms with a T-shirt and my UGGs.
My teeth are a nightmare and I spend thousands just to ATTEMPT to keep them. I am not proud of my smile - I was a smoker for 24 years and had poor nutrition for half that because I was so poor when I was raising my child. (She ate first, but yes, I bought my smokes before I would eat - that's the result of the addiction that I have now happily broken free from.)
I don't EVER iron clothing and I don't care if I have wrinkles on my clothes as long as they aren't TOO bad - my face has wrinkles, too!
I'm sorry, this is NOT meant to be a slam to anyone, but if people want to judge who I am as a human based on those superficialities, then those are people I really don't care to have in my life!
I'm really finding this thread amusing!!!
Who I REALLY am is not reflected by my appearance whatsoever. I have an IQ that got me into MENSA, I have survived hardships that most people would rather die first than try to live through, I am a volunteer fundraiser/event organizer and have helped to raise over $250 K for those less fortunate than myself over the last 7 years.
I think you can tell a LOT more about a person by the books they have on their bookcase than you can by the way that they appear physically or superficially.