it's "oo-koo-le-le"
The ukulele ("uku" = flea, "lele" = to jump, in Hawaiian) was brought to Hawai'i by Portuguese immigrants and gained popularity in Hawai'i, then the world...I think that ukulele is one of the most friendly musical instruments; it's portable, it only has 4 strings, and it makes soft, sweet and warm sound.
It is relatively easy for beginners to learn how to play the ukulele. You can play some songs with as few as 3-4 chords or even 1 or 2!
Playing ukulele
The "High G" tuning is the common tuning. G is a higher note than C and E. It has a light and sweeter sound.
Playing ukulele
"Low G" is more common among professional ukulele players (...I think) the low G sound can add depth the sound.
Playing ukulele
Playing ukulele
Playing ukulele
When in doubt, look it up on the net! There are so many tutorial videos and resources out there, from "How to tune ukulele" to "How to strum ukulele" and "[song name] ukulele chords" to "ukulele classes/instructors near me."
Below is a list of basic ukulele chords if you don't already have one.
Happy strumming!