It's pronounced like "jobe".
Here are some examples of how to use it in a sentence:
* เขาจูบเธอ (Khao joot ter) - He kissed her.
* ฉันอยากจูบเธอ (Chan yak joot ter) - I want to kiss you.
* จูบแรกของเรา (Joot raek khong rao) - Our first kiss.
Let me know if you have any other Thai words you want to know!