7. Putting your “but” in the wrong place
The word “but” in a sentence negates what came before it. So if you say, “I love you, but I dislike when you do this,” what comes across is your dislike. Instead, say, “I love you.” Then, start a new sentence about what you do want. “In the future, I’d appreciate if you (blah, blah, blah).” That way, you get both of your positive points across.
State what you want with certainty, which means think before you speak. This is something most of us can use practice in.