There are a lot of ways to get your point across. From the method of delivery, the tone of your voice, the intention behind the words, right down to the words themselves. Take the time to be thoughtful about your vocabulary and when in doubt, choose words with positive connotation, rather than not. When possible, be kind instead of mean.
And don't forget that the person you speak to the most, is you. Have a lazy (ahem, I mean rejuvenating) Sunday.