Cars will not stop for pedestrians (or other cars). It may seem as if they are ignoring lane lines, traffic directions and sidewalks.....they are!
And when you are riding in a taxi/rickshaw, never ever let the cab driver try to take you some place you didn't ask for. There is always something in it for them. It's always a buddy's shop or some place where he will tell you he's getting you a good deal, but really he speaks Hindi to the gate keeper and they work out to charge you more and then split the profit. I keep falling for this one though.
Symbolism can be quite confusing in this new place. You might notice symbols that look familiar to you, however, some of these things do not represent what you expect. For example, you may see this six pointed star, and say "hey look, a synagogue". When you walk in, however, you will be disappointed to find no Bar Mitzvah or Briss in sight. Read more about the meaning of the Hexagram.
(Not a Jewish Star)
Another symbol you might see as you stroll the streets of Delhi, is a good ole fashion Swastika. Luckily (for me anyways), this does not represent Neo-Nazi ideology.
(Not a Nazi Swastika)
As an American, its easy to make friends with the people who live here. It especially helps if you are extra white, like me. People love to take pictures with such a unique looking individual. And when you say you're from America, they unanimously respond with the name of everybody's best friend, Barack Obama (It seems people always just say who is popular in American culture at that time).
(Everyone loves white people)
Another good thing to know is that "No" means "Yes" in India. If you see someone bobbing or shaking their head, it means they're in agreement. Tips for head bobbing
Finally, if anyone is looking to get married, I have found you the perfect caterer....
P.S. Snakes love to break it down....