I just love this write up bruv. Many Christians are not acting like Christians in any way. They say so many bad things which they ought not to say and this is wrong.
Our words should be kind words of hope. Our speech should make non Christians come to christ, not make them question Christianity.

This part of your post clarifies my statement.

This means that your conversations must reveal your christain character.They must exemplify and recommend christainity, not repel people from embracing it.They must not only be holy but also wise, gracious, intelligent and edifying.

We should always think about what we say before we say them so as not to convey the wrong message.