A confident individual exudes a great sense of self-worth. They trust in their ability and feel secure in easily sharing their successes and accomplishments. They don't need to resort to bragging or boasting as they are satisfied with how far they have come and what they have achieved. Their respect for themselves is clear and reflects positively on others, inspiring them too.

In contrast, arrogant individuals often have an exaggerated and grandiose idea of their worth.

This attitude is rooted in insecurity which can lead to intense feelings of dissatisfaction with the status quo.

To mask these unsavory emotions, arrogance becomes a defense mechanism allowing them to boast about their accomplishments without feeling embarrassed or awkward.

More info: How to Conduct a Wireless Site Survey