This sign says "tee-nee jam-nai buree" which literally means "here sells cigarettes". These days they have to keep cigarettes under the counter so they need signs like this one. Outside of major cities you won't see bilingual versions. The word for cigarette is "bu-ree".
ที่นี่ จำหน่าย บุหรี่ (tee-nee jam-nai buree)
Thai Signs: High Voltage
This sign is a warning about the danger of high voltage cables. The first word is "an-dta-rai" which means danger and you should try and remember.