Uwu is more of an online thing, so it’s rare you would use it in conversation. But if you really wanted to use it, “oooo-uuuh” would be the best approximation. Advertisement.

What UwU does is no different, except that it has a Tamagotchi-style virtual pet and a handful of mini-games built in. As you play, your new pedalboard buddy dances and gains experience points.