If you need self confidence examples, they are not hard to find. Online or offline, there are a number of individuals and companies willing to help anyone who needs more self confidence.
Self awareness is the first attribute people need to have in order to gain the confidence they need in any situation. Once this is obtained, a person can begin to refuse to be anything other than the person they are.
Voicing an opinion regardless of whether people will agree with it or like it is also needed to boost self esteem. The more a person voices their opinion, the more they realize that whether it is agreed with or not, others will respect the fact that you had the courage to do it.
These are merely two examples out of dozens a person can use to boost themselves up.