Presenting Hada
To Present Khatag (white Scarf), which embodies purity and good luck is a traditional practice among the Tibetan people to express their best wishes on many occasions, such as paying homage to Buddhas, wedding ceremonies, festivals, visiting the elders, and entertaining guests. 

Visiting a monastery
If you plan to visit a monastery do always walk clockwise around the monastery. However, if you visit a Bon monastery, then walk anticlockwise. It's okay to enter a chamber without removing your shoes, although monks do. Coming inside during the chanting session is acceptable. Sit or stand in the rear. No loud and irreverent conversation! Do not sit on the seats where monks sit when they chant. Don't smoke, consume alcohol or make unnecessary noise in a monastery; touching, walking over or sitting on any religious texts, objects or prayer flags in a monastery, causing anything to be killed in a monastery and Intrusive photography of a monastery especially when people are performing religious ceremonies. Always ask for permission.
Don't wear shorts to visit Monasteries or temples.

Pilgrimage
The immediate motivations of pilgrimage are many, but for the ordinary Tibetan it amounts to a means of accumulating merit or good luck. The lay practitioner might go on pilgrimage in the hope of winning a better rebirth, cure an illness, end a spate of bad luck or simply because of a vow to take a pilgrimage if a bodhisattva granted a wish. In Tibet there are countless sacred power places, ranging from lakes and mountains to monasteries and caves that once served as meditation retreats for important yogin. Specific pilgrimages are often proscribed for specific ills; certain mountains for example expiate certain sins. A circumambulation of Mt. Kailash offers the possibility of liberation within three lifetimes, while a circuit of Lake Manasarovar can result in spontaneous Buddhahood.

Diets

Tibetan people do not eat horse, dog and donkey meat, birds, wild animal and also do not eat fish in some areas, so please respect their diet habits.

Taboos

Here are some of the basic etiquette rules that should be followed when in Tibet: