I am not 100% certain that she's Laotian, but I tried to go through a process of elimination in my mind based on my experiences with asian women, her physical appearance, and her lexicon. I pointedly asked her about her nationality, but she was being evasive with me. Another guy mentioned that she told him that she was Korean...but she is definitely not Korean.
She strikes me as southeast asian, but definitely not Thai, Vietnamese and certainly not Singaporean. So it was a toss up between Burmese and Laotian.