Here's a breakdown:
* Th - The "th" sound is made by placing your tongue behind your teeth and expelling air.
* O - The "o" sound is the same as in the word "go".
* W - The "w" sound is made by rounding your lips and expelling air.
However, it's important to note that "thou" is an archaic word that is rarely used in modern English. You're more likely to encounter it in literature, poetry, or religious texts.