Advice: Respect

Beach

Most Indian women swim with their clothes on. Avoid wearing small bikinis and shorts on the beaches. Even if Indian women use to show their belly (saree), it is not a reason for u to show your legs and breast!

Source

Privacy

Avoid kissing (or more) in public. Affection is a private matter!

It reminds me of a short anecdote. I was in a club in Bangalore with my boyfriend (who is an Indian). One might think that a club would tend to be a bit westernized. True… But it doesn’t mean that one has to forget the conservatism of the Indian society. I sat on my boyfriend’s laps. The waiter came to tell us to “behave properly”. The process of westernization began. But the values of an entire country can’t be changed in one day. And I m not sure they should…

Update: New Delhi's authorities found that a fine of Rs 50 levied under a 1936 law was too little to deter couples. Kissing in public has just gotten 10 times more expensive in India's capital, where couples face fines of Rs 500 if they are caught making "illegal use" of public spaces.

Books/paper

Books are considered to be the concrete form of the Goddess of learning. Avoid touching them with your feet.

Paying

Avoid touching hands when paying. Some Indians consider foreigners (non-Hindu) as impure.

Smoking

If you are a girl, avoid smoking in public.

Temple/mosquee

Take off your shoes before entering a temple/mosquee. It may also be customary to take them off while entering into homes.