2:The Thais observe by gifting their father with a Canna flower(Dok put ta ruk sa). Thai people wear yellow shirt on this day to show respect for the king. A couple of weeks prior to the Father's Day celebration, all roads, houses, and shops are decorated with the elaborate display of kings photographs and national flag. On the day of his birthday, the king goes to the temple to make merit to the monks. This event is televised on national TV,so everyone can see the king honoring his religion and being by the monks for a long and healthy life.