Introducing oneself in Chinese/ Presentándose en chino

你好, 我叫威廉, 很高兴认识你。
Nǐ hǎo, wǒ jiào Wēi lián, hěn gāoxìng rènshi nǐ.
Hi, my name is William. Nice to meet you.

您好, 我的名字叫爱丽丝, 很高兴认识您。
Nín hǎo, wǒ de míngzi jiào Ài lì sī, hěn gāoxìng rènshi nín.
Hello, my name is Alice. Nice to meet you (honorific).

大家好, 我是詹姆斯·布雷迪, 很高兴认识大家。
Dàjiā hǎo, wǒ shì Zhān mǔ sī · Bù léi dí , hěn gāoxìng rènshi dàjiā.
Hello everybody, I am James Brady. Nice to meet you all.

[Self introduction] in Chinese
大家好,我叫xxx,你可以叫我xxx,今年xx岁,我来自xxx。我是一个学生/我从事的职业是xxx。我的兴趣爱好很广泛,平时很喜欢画画、运动和阅读。
Hello everyone, my name is xxx, you can call me xxx, I am xx years old this year, and I come from xxx. I am a student/my occupation is xxx. I have a wide range of interests and hobbies. I usually like drawing,sports and reading.

INTRODUCE YOURSELF IN CHINESE
Nǐ hǎo, wǒ jiào Noa.
Wǒ shísān suì. 
Wǒ zhù zài Déguó.
Wǒ jiā sān kǒu rén, bàba, māma hé wǒ.
Wǒmen yǒu yì zhī gǒu hé yì zhī māo.
Tāmen hěn huópō.
Wǒ xǐhuan xuéxí Zhōngwén.
Jīnnián wǒ xiǎng qù Zhōngguó.
Zhōngguó hěn piàoliang!