The ability to focus on yourself separate from the environment and other individuals, is the basic concept underlying the emotional intelligence attribute of self awareness.

Typically this requires an internal belief in the abilitiy to rely on yourself and your judgement.  You believe and trust in yourself.

Combined these behavioural traits can appear to others as an attitude of superiority manifested in an overbearing manner or in presumptuous claims or assumptions (i.e., arrogance)

Avoiding the Arrogance Label

While confidence and self awareness are powerful personal attributes, valued and invaluable tools for you to achieve your personal goals, being percieved as arrogant is something to avoid.

The ability to be both self aware and confident in a way that is not percieved as arrogant requires concious effort.  By default these behaviours can send the wrong message.

As you travel down the road of winning friends and influencing others (to quote Dale Carnegie) make sure you use your sensitivity to balance the way you are percieved.

That is, use your self awareness of others reactions toward you to influnce and change those reactions.  Manage your personal behaviours in a way that those you are interracting with like.

This is not a natural or unconcious approach.  Be fully aware of how you are behaving, constantly judge how others percieve it and change as needed to get the desired reaction.