Family is the first topic

Thai small talk moves quickly to family: your parents, your siblings, whether you have children. It's a way of placing you, and a sign of interest, not prying. Family is also practical here. Many grown children send part of their salary to พ่อแม่ each month, and in many homes ยาย or ย่า raises the grandchildren while the parents work in Bangkok, visiting at long weekends and Songkran. When you talk about your own family, warmth counts more than detail: a photo of your parents on your phone, or saying you miss them, lands well. If your family situation is complicated, a short answer like อยู่ต่างประเทศ (they live abroad) is enough; nobody expects more.