Interesting topic C. Do you want to drink where there are other falangs, or do you prefer a non- falang drinking establishment?
Parahandy and I have managed to convert many a shop into a kind of pub. We rarely drink in Hua Hin, because we don't live there, but you'll find that most shops have some kind of seating outside. Just turn up and ask if you can drink your purchased bottle of beer there. They'll fumble around for a glass the first time, the second time they'll have a clean glass ready, and the third time the beer will be on the table before you sit down.
We occasionally get joined by pals at our strange watering holes, which is nice...
It all depends on whether you want farang company or not. Most ex-pats will obviously congregate in the bars run by ex-pats, which are usually in the centre of Hua Hin. I really don't know of any bars where ex-pats meet outside the touristy bits. But I'm sure there must be someone who reads this who does...
VS