Being yourself:

We all hear simple quotes such as being yourself readily spoken by many, as if the self is a fixed operative that reacts and thinks in the same way no matter the situation and people you come across.
The self is in constant motion, always riding a wave of new water, not isolated, but in the company of others.
Some we might feel more comfortable saying whatever pops up into our mind, while with others we use more tact and precision before allowing the consciouss words to be spoken.
Being yourself, in a sense means not over-regulating, not halting the natural reactions and emotions you have when dancing with life. Not second guessing your own responses to ideas, people, places and the impressions they naturally have on you.
We are our authentic self in all moments in a sense.. Whether it be reserved or outgoing, our natural reaction and instinct is not something that can be taken away from us, and thus, we are always ourselves every step we take.
To not block our own intuition and foresight, that which offers us information unique to ourself. 
Not denying yourself of welcoming of the new and unexpected, due to the fear of how it can impact you and make you respond. To build walls to block what you consider undesireable aspects of yourself from appearing. To be okay with how you feel and act, without scrutiny and over analyzing.
Meaning if you feel tired at work, you do not fight your own state, fight with it feverently until it has been replaced with an emotion that you believe would be more fitting to the situation at hand.
Being yourself means if found in company you feel shy, you recognize that sensation as being okay, trusting your inner self enough to accept that moment.
Not to thrust the focus excessively inwards, whipping yourself for not operating in a state you deem more correct by a nagging voice that tells you what is more appropriate.
If in company of a person of special importance to you, allowing your authentic states to shine through, reflected in the mood, actions, feelings and words without modification and objection to the flow of oneself.

If this applies to oneself, then it also applies to others. Do not act discrimminatory to the reactions of others, how they feel, percieve and express themselves in regards to you and others.
Do not play the game of he should have felt that way, reacted this way, spoken those words,
Done that instead of this.
If something causes an aversion in you, an attraction, glee or contempt, just go with the flow of it all.
We are all involved in the mixing of elixirs and potions, one substance reacting to another.
Being part of the alchemy of life, searching for the different flavors and recipes resulting in constant experimentation and wonder.
What works well, how much spice is too much, when is there enough sugar in the bowl, we all react differently to the process and the results.
If the inner voice tells you to be tactful, vary, discreet and cautious, do not block the message from being recieved. All aspects of ourselves, are part of us, like a tree, no branches and leaves shall be circumsized and forced to die,
Some branches naturally wither, some leaves fall off before entering fall, but to grab a saw at every occassion and cut off the branches and leaves every day, is bound to leave the tree in a sorry state. Let yourself, just like nature and the signs they offer, be the guide.
Do not be stuck in worrying about the perceptions of others, how they react to what you bring into the world,  trust that your inner knowledge of what is good and beautiful and appropriate, is bountiful due to the life you have accumulated.