The way you sound makes up 38% of a first impression and includes how fast or slowly you speak.People listen to your tone of voice and decide if you sound friendly or unfriendly,interested or bored,and happy or sad.What we say the actual words counts for only 7% of the message.People form first impressions within 10 seconds of meeting you.And first impressions don't change easily.If someone gets the wrong impression of you,it can take a long time to change his or her mind.