Being assertive is like being confidant, and bold. Assertive people ask for what they want, or maybe even demand it, but always within reason, and never in a threatening way. Aggressive people demand everything in a harsh way, and can be pushy. My tips for being assertive would be to make eye contact, shake hands, and speak clearly. Don't be afraid to ask questions. With most jobs you have to deal with customers, make sure they know you are comfortable interacting with people. Hope this helps!
