พวกเขา

[túk kon dtàang pûut tĕung pûak kǎo]

Everyone is talking about them (situation: observing group dynamics)

This is a common usage of 'they' in daily conversation.

[pûak kǎo chôb gin khảo pàt]

They like to eat fried rice (situation: sharing food)

They likes to eat.

[pûak kǎo bpai dtà-làat mâi]

They are going to the new market (situation: observing people)

They is a plural pronoun, used with person or people.