Where to bargain, and where not to

Bargaining is normal at markets, with street sellers of clothes and souvenirs, and with tuk-tuk drivers, who often quote visitors high. It isn't done at 7-Eleven, supermarkets, malls, pharmacies or food stalls, where prices are fixed and usually printed. Where it's expected, keep it light: smile, say แพงจัง (so pricey!) or ลดหน่อยได้ไหม (a little discount?), and accept a small drop gracefully. Buying two often earns a better price. A low offer rarely offends; an impatient tone or a raised voice does, so keep a cool heart. Once you agree on a price, pay it, and never reopen the deal after the sale or the ride.