1. Take part in Songkran
The annual Songkran water soaking festival takes place in April, so if you're in Thailand then, you need to either avoid being drenched or get amongst the action. It's about cleansing yourself of the past year's back luck in preparation for the new year. Expect motorbikes to roar by with passengers holding water pistols and complete strangers running up to dump a bucket of water over you.
2. Visit a rooftop bar
Speaking of great places to watch shenanigans, there are several breathtaking rooftop bars in Bangkok. Try Sky Bar for a splash under the stars and amazing views of the Chao Phraya River. You can book for dinner at Sirocco up here too and enjoy the world's highest al fresco bar before or after your meal, all while enjoying live jazz. Here's my blog on three other great rooftop bars to try.