Since many of us people have no intention or desire to cross someone's personal boundaries, and truly want to know each others boundaries so we can respect them and each other.
Which involves trusting that we and all people will own our responsibility for respecting ourselves and equally those we relate with by knowing & clearly verbally honestly communicating our own individual boundaries to each other before expecting them to be understood & thus able to be respected.
If we do not mutually respectfully, honestly and directly communicate specifics of our subjective boundaries to each other in the moment we feel them and want them respected, we actually ( even if unintentionally ) needlessly mislead the person (s) we are relating with into believing that we in fact are appreciatively open to & want what we may not. And what likely many other people ( maybe even ourselves at different times & circumstances ) would be & are appreciatively open to, which is why they may understandably believe we want what we dont if we dont express such boundaries clearly to them in the moment. As boundaries & openness also change for some people moment to moment. Clarifying the subjective interpretations as needed.
When, if we communicate our personal preferences - boundaries directly honestly to each other immediately, we allow each other to understand and thereby respect our otherwise vaguely or not at all communicated boundary.
So much of how we and all people perceive, interpret and thus experience life and ways of relating, is diversely subjective. What we may not want ( our boundaries ) at one moment in time or in one situation, we may have been or be open to in another moment in life and / or actual or assumed circumstance.
We may also misinterpret the intentions or motivations of people who unknowingly and unintentionally offer or do something we don't want at that time, solely because they did not know of the perspective & related boundary if we don't verbally clearly tell them first at the time.
I know my own openness & related ways of exploring life, learning & loving through relating & diverse experiences ( including ways I did not really feel so into or continue generally in my life, but was open to learning via experiences, giving or exploring if as it seemed it was helpful for & appreciatively welcome by those i was relating with) have fluidly changed & adapted at times according to trusting the seeming openness and interests of people who, because of their not having or having but not communicating specifics of a boundary they had, were or seemed openly interested in certain experiences.
Clearly knowing & honestly mutually respectfully communicating our boundaries very specifically at the moments we want them to be understood & respected, and following up with more communication as helpful to account for people's potential different experiences & interpretations of words & actions, helps us all be understood, respect and be respected. Prevents many misunderstandings.
And can even reveal that people & situations we misinterpreted as being negative or disrespectful, are actually intending and are respectful, loving and positive. "