For example, if you've had three sales jobs and you mention exceeding quota in two of them, I'm going to ask what happened in the third job. Submit statements of proof that you were effective. Note that designations such as cum laude are always, italicized, lower case. Denote whether your grades or class rank are strong. Sometimes by not including such information, the reader may assume it is worse than the reality.
Obvious omissions are always suspect.
Critique your resume. When you are done, look for a pattern of evidence that supports your career goals. Remember, an employer will hire you not because of prior responsibilities, but because of your results and successes in performing those responsibilities. For example, in managerial roles, you would want to show evidence that you are less the order taker and more the independent thinker with autonomy or authority to make decisions. Understand that your resume is a dynamic piece of information that you should update at least annually as you evolve professionally.