No, a confident look is not a proud look that God condemns, but refers to that which express a heart which is vainly puffed up by his fleshly mind," in arrogance and conceit, a Mussolini look, and which the original elitists expressed, (Is. 14:13,14) and is not conscious and sobered by one's vulnerability and needs.
Matthew Henry's Concise Commentary on the Whole Bible says,
Those sins are in a special manner provoking to God, which are hurtful to the comfort of human life. These things which God hates, we must hate in ourselves; it is nothing to hate them in others. Let us shun all such practices, and watch and pray against them; and avoid, with marked disapproval, all who are guilty of them, whatever may be their rank.
In contrast to the proud, one may have confidence in his God-given abilities, but is not deluded into thinking of himself as invulnerable, but is conscious of his shortcomings and need.
For I say, through the grace given unto me, to every man that is among you, not to think of himself more highly than he ought to think; but to think soberly, according as God hath dealt to every man the measure of faith. (Romans 12:3)
Wherefore let him that thinketh he standeth take heed lest he fall. (1 Corinthians 10:12)
Not to be dismissive, but aren’t they actually talking about a pious demeanor. Another words looking at your fellow man thinking you are more righteous than they are?