Apart from spoken language, there is a host of non-verbals used for communication. A wink may be a nod of yes. A whistle can be a call for attention. A kiss may be a greeting or an expression of affection. A hair toss can be a signal for flirtation. A ring may be a band of love. These common gestures or symbols have been accepted by the larger community and is understood by almost all civilized societies as bearing meaning.
There are specialized languages however for more specific sub-groups. Friends, as one such sub-group, have their own reconfiguration of language in general and the rules of communication therein. Pauses, breaks, hums, and neck scratches communicate something privy only to the insiders. Incomplete sentences are very well understood. Politically incorrect statements, chauvinist and/or racist slurs, and even below-the-belt remarks are usually passed off as laughable. To be a friend is to be rewarded with a microchip decoder implanted in one's senses. To be an insider is to be a party to the foreign language of friendship.
We were on the way to the parking when my friend remembered she forgot to time out on her bundy. I told her in jest to let it pass; she'll get overtime pay for it anyway. She dashed back to the building faithfully accomplishing what needs to be done while we waited outside for her to sign the day off. A student, apparently overheard my demonic offer. He saw his Ethics teacher with me and thus recited, "Sir, dapat maglog-out sa bundy clock. Unethical yun diba, Sir?" The student was beaming with pride as he delivered his assessment of the incident, repeating the word "unethical" at least thrice to his teacher ignoring the presence of this devil amidst them. It was an indirect assault I thought. Isn't it also unethical to interject in other people's conversations without knowing where they are coming from? A judgment was made based on ethical principles blind to the context into which a statement was made. His teacher hushed him down saying, "Magjogging ka na lang uli."
Ethics has always been clear and distinct on its pronouncements. And it is but right that ethics be luminous on what it holds as moral and reprehensible. However, it does not aim to be the hacksaw for the critic of people. It is but a personal gauge whether one is living an upright or an injudicious life. Philosophy in general should have taught its interns to be prudent in speech and wise in action. This is the most basic ethical norm to be followed by all who seek to be lovers of wisdom.
Languages, gestures, acts, and jokes cannot be taken out of the sitz im leben from which it was borne. To relate and communicate well is to participate in the context of people in dialogue. Even ethics takes into account the unique historicities of persons it seeks to define and address, otherwise, it becomes a dead language which speaks only to itself.
There are insiders and outsiders in groups. This is the hard fact of life. However, this does not preclude an invitation to dialogue between groups. The goal is to widen our roster of insiders and have less and less of the outsiders.
This morning I got that offer. I don't know how and I don't know why me. Nonetheless it is an invitation most cherished--
I am one of with them. 
Plugged into: Nobody Puts a Baby in the Corner, Fall Out Boy