Because its referring to you. And when you refer to someone or yourself you capitalize. Its also part of a proper noun.
Is this what you are looking for? Like an introduction sentence for an essay??
In the world, there are many people to interact with; however, people come from many different cultures...
1. It is true that flip charts are best for smaller, formal groups.
2/ The difference between an analogy and a simile is D. one's meaning is recognizably opposite of the literal translation.