Morning assemblies are standard throughout Thailand. It always starts at 8 a.m. with singing the national anthem and praying. Participation in prayer is not required of the foreigners, but you are more than welcome to join.
Either way, your presence is still mandatory as you are a valued member of the school. English teachers will present different topics by making Thai students repeat phrases, sing songs or play a short games. Morning talks take about 2-5 minutes and are performed only once per week.