When travelling, it is custom to stop and circle an ovoo three times in clockwise direction, in order to have a safer journey. Usually, rocks are picked up from the ground and added to the pile. Also, one may leave offerings in the form of sweets, money, milk, or vodka. If one is in a hurry while traveling and does not have time to stop at an ovoo, honking of the horn while passing by the ovoo will suffice.
Ovoos are also used in mountain- and sky-worshipping ceremonies that typically take place at the end of summer. Worshippers place a tree branch or stick in the ovoo and tie a blue ''khadag'', a ceremonial silk scarf symbolic of the open sky and the sky spirit Tengger, or Tengri, to the branch. They then light a fire and make food offerings, followed by a ceremonial dance and prayers (worshippers sitting at the northwest side of the ovoo), and a feast with the food left over from the offering.