Some cultural lessons for you :)
Man to man greetings is through shaking hands while opposite sex greetings involves kisses on the cheeks (1 on each). The professional greeting as anywhere else remains the handshake though.
Good Behaviour in Religious Places:
As long as you're dressed properly (even in shorts) there won't be any problems in accessing cathedrals, churches, hindu temples and chinese pagodas. Please show due respect when visiting religious places. Wear appropriate clothing - no partial nudity for woman (and remove leather shoes and belts) when entering the premises.
However in hindu temples, it is kind of requested to remove any footwear before you go in front of the god statues. I don't think filming or taking pictures in any of those religious premises will be an issue as long as you're not interrupting any prayer sessions.
However the one am not sure about is for the Mosque :s. I don't know if people of other faith are allowed in there or you'll need a special permission from the religious leader (imham) to do so.
Enjoy your stay,