What it means
I'd like this one. 要 is "to want," and it works as an order at a counter or restaurant.
When to use it
Pair it with a pointing finger and you can eat anywhere. 我要那个 (that one) is the companion phrase.
Examples
wǒ我yào要zhè这ge个,xiè谢xie谢。
I'd like this one, thanks.
wǒ我yào要zhè这ge个,hái还yǒu有nà那ge个。
I'll have this one, and that one too.
wǒ我yào要liǎng两wǎn碗miàn面。
I'd like two bowls of noodles.
The full set of survival phrases for greetings, dining, shopping, and getting around, each with audio.