How to wai
The different types differ mainly by the hand height:
1.Wai pra - fingertips at eyebrowse height
2.Wai poo yai - fingertips at nose height
3.Rab wai - hands chest height
You should keep your elbows tucked in and fingertips level with each other.
1.The Buddha
2.The Buddha's teachings
3.The Monks