We can formulate our language to form sentences based on the feelings attached to the words that we use in the sentence. Our choice of vocabulary is important for forming a sentence in such a way as to convey the feelings we want to give off in our desired message. One way to generate more positivity within yourself is to make changes to the words you use in your vocabulary. For example, if you replace the word "stupid" with "dumb" then you can convey the same meaning with a much less negative emotion attached to the word. The word "dumb" has a less harsh connotation and is less demeaning than the word "stupid." We can be selective of our language to construct more precise arguments as well as to express ourselves in the most beneficial way possible.
If you want to alleviate tensions in a conversation, you can formulate your speech by thinking about the language you will use and noticing how it feels prior to speaking.
We can also replace negative words in our vocabulary with the negation of the antonym. For example, you can say something is "not good" instead of using the word "bad" to avoid the negative feelings associated with the word "bad" and point the listener to the opposite of the negative term. We can utilize our vocabulary in many ways for a positive benefit.