I do that quite often, even sometimes I observing my mum's life, I also wish I could live like her..lol However, I know I can't just simply conclude by just looking what I can see, there are many things I don't know about that person's life.
Walking on the street, see someone with nice car..wearing all branded stuff and good looking face..automatic feel the envy fully occupied your mind and "Sigh..I wish I were him."
Well, human always look at othert's fortune and overfoucs on own misfortune. We always seeking for what we don't have, while neglecting what we have. Now I start to learn treasure all I have and satisfy my life, even it's boring life, for somebody it's a bless for them.
What I suddenly writing all these? because I realized that not everything I can see is everything, sometimes people's mind and heart are very hard to understand and predict. He is always smiling to everyone but his heart maybe bleeding all the time.
"All I can say about life is...enjoy it!"