Expressing emotions

Dear all,

Today is sunny and peoples' faces and general outlook seem to reflect the joy of seeing the sun and feeling it's gentle heat. Smiles and greetings all around. How should these emotions be expressed in the written form?

Cave people started a form of written communication, but as far as I know, they didn't include emotions in their paintings. Then the written word where great writers were not only able to express their emotions but also help us to enter into their world and make us feel the same.