No, just capitalize names, citys, or places, and words after a dot, example:

Hola, mi nombre es David. Nací en la ciudad de Bogotá.

translated to english:

Hi, my name is David. I was born in Bogotá city.

No, just capitalize names, cities, or places, and words after a dot.

For example:

Hola, mi nombre es David. Nací en la ciudad de Bogotá.

translated to English:

Hi, my name is David. I was born in Bogotá city.