Nepal's Culture is so astounding and surprising, that some tips for newcomers are sometimes necessary.
To show appreciation and respect, use two hands rather than one when giving or receiving something, even money.
Remember not to point with a single finger but use a flat extended hand especially to indicate a sacred object or place.
Among Hindus, avoid touching women and holy men. The traditional palms-together "Namaste" greeting is preferable.
Don't eat with your left hand nor eat beef among Hindus.
Try not to step over or point your feet at another person, a sacred place or a hearth.
Remove your shoes when entering a home , temple or monastery ( and leather items in Hindu temples ) and avoid smoking and wearing scant dress in religious settings.
Do not offer food from your plate, nor eat from a common pot, and avoid touching your lips to a shared drinking vessel.
The sight of men holding hands is common, but men and women holding hands, and general acts of affection, are frowned upon.
Ask for permission before taking pictures, specially inside holy shrines and temples