Hope this doesn't break the rules in some way. But having a little trouble researching this. It struck me this forum might be the perfect place to ask given the number of learned linguists that walk these halls.
Self study Book(s).
The student speaks almost zero English, maybe just hello and a few other words.
The student is eager to learn, but not wanting to discourage with something too heavy/academic as they really are a complete beginner.
The ideal would be get them up and running quickly on the basics of conversational English.
Can be purchased in the Bangna area of Bangkok. Think there is a big mall there called CentralPlaza. But, no disaster if have to travel to another part of the city.
Any other resources/tips online or otherwise you might want to chip in that might be helpful for a Thai person living in Bangkok?