A quiet warmth grew in his chest and his heart beat a little faster.
Consider the above sentence. Would you say it's positively or negatively charged? Would you say that whatever happened before this had a positive or negative impact on the character in question?
What kind of situation do you imagine it might have been that caused a reaction like this?
Edit: Originally I thought of posting this in the Showcase forum as it's a sentence right out of my WiP, but I figured it's a bit too short.
It might also be nice with a little discussion on the topic of how to infuse sentences with positive/negative attitudes or emotions without explicitly typing them out.