Visitors should wear shirts that are least short-sleeved, and skirts, pants or shorts that are knee-length or longer. If the heat means that dresses or shirts in a strapless, halter or sleeveless style are necessary to be comfortable, bring a shawl or wrap to cover up exposed skin before entering. Many temples require shoes to be removed, so wear or bring socks.
Keep your conversations respectful in tone, volume and subject, and be aware of the resident monks, other visitors and worshippers who may also be present. Avoid inappropriate physical conduct with your traveling companion. Don't touch anything on the altar. If you are directed to sit, you should do so. Some temples will require sitting, but others are less strict if you aren't actually meditating. Taking pictures is allowed or even welcomed most of the time, but pay attention to posted signs. To avoid giving offense, you should always ask first if you are unsure.
Don't touch anyone on the head. It is the most sacred part of the body, and so it would be extremely rude to touch someone else there -- even if the intention is affection (like patting a child).
On the other hand, the feet are the least holy part of the body, and your soles are the lowest of the low. Avoid pointing your feet at anyone -- but especially monks or statues of the Buddha -- and when sitting, tuck them underneath your bench or chair, or under your knees when sitting cross-legged.
Women may not have physical contact with monks -- even handing something to a monk should be done by a man.
Avoid pointing with your index finger. Instead, gesture with your hand open. Pay attention to how those around you hold their hand (depending on the region, the palm may be facing up or down). In many places, the left hand is considered unclean, so it may be more acceptable to use your right in social situations.
Refer to the specific instructions of the "wat," or temple, where you will be staying. Wats that are exclusively inhabited by monks are likely to prohibit female visitors overnight, so check ahead of time to make certain. There are many temples that welcome and can accommodate larger groups, but there will likely be restrictions on what you can or should bring with you.
