It is said that everybody role plays – at least a lot of the time they do.
Occasionally an outgoing personality is created to hide a certain fear or it may be part of a desire to be different.
Everybody’s identity is a constantly morphing reality depending on who they are with or who they are not with.
When alone some people can be the happiest or saddest that their beings can express, and yet, when they are in the opposite situations the emotional character creation also changes.
From Shakespeare's As You Like It, 1600:
All the world's a stage,
And all the men and women merely players:
They have their exits and their entrances;
And one man in his time plays many parts,
His acts being seven ages.
If, according to Shakespeare, all the world is a stage, then I suggest you play it ... As You Like It.