Be self-confident Don't matter much, will help you to get relaxed and friendly, but not as its own until the limit is exceeded, it may make people uncomfortable and difficult to access.
Of one's own Do not be It allows you to look relaxed and friendly. But beyond the scope of one's own. This may cause the other person uncomfortable and difficult to reach.
Be yourself, don't make a fuss. Will help you look relaxed and friendly. But don't be yourself beyond boundaries. Because it may make people uncomfortable and difficult to access.