Some people, wear their Christianity as a badge of honor, some do not, and some profess their faith only amongst those of a similar faith, whereas some do not, and further some when giving the opportunity to testify for their faith simply remain silent, whereas some do not. While it is true that many of us are not gifted in our ability to proselytize or to testify about our faith, it is a form of hypocrisy to change our habits and our being in order to conform to certain social orders or to not rock the boat, or other assorted reasons of convenience. Christianity is not meant to be convenient, Christianity is not meant to be hidden, Christianity is not meant to be testified to only when you are in some place of safety, and Christianity is not something to be turned on and off like a light switch. You are either a Christian, a real Christian, or you are not, and those that feel shame when given the opportunity to speak truthfully of their love for our Savior, have done immeasurable harm to themselves as well as to those that weren't able to feel the warmth of their witness.
Unfortunately, too many of us live lives of conformity, to which we want to be polite, to not stand apart, to not be a bother, so consequently we adjust our habits and mindset to match perceived social customs of the day. That type of wrongheadedness does not produce a man of real worth, because only a person that is alive in the spirit can go against the flow, whereas those that are dead have no choice but to go with the flow. While there is nothing wrong with being humble in your faith, or shy in your countenance, a true Christian should always have the resolution that when something abuts up against their faith that they will not abandoned it out of mere convenience or cowardice.
The essence of being a Christian is that you do recognize that you are beholden to a Higher Power. We read in Mark 8:38: "Whosoever therefore shall be ashamed of me and of my words in this adulterous and sinful generation; of him also shall the Son of man be ashamed…" A Christian cannot have it both ways, either you are Christian and your faith is a true foundation to build upon, or you are shifting sand, lukewarm, and an abomination because of your hypocrisy to the faith. True Christianity is not a "get a free pass to Heaven" card; it is instead an eternal commitment to Christ in spirit, words, and in action.
As a Christian, you are given the responsibility to be accountable for your actions and deeds, both implicit and explicit. While there are some so-called Christians that turned their back on Christ, when really put to the test, there are many others who abandon Christ through thousands upon thousands of little, minute missteps, always intending to do the right thing at some unspecified future date, but never getting around to it, all because of convenience, or possibly because you are caught up in this world, or really because you believe that you are a Christian, but not one of those kind of Christians, where you have to be a servant to anyone, because, for example, washing an impoverished person's feet is something that is disgusting, even shameful.