what are people thinking?

Let me just say that i work with some interesting people. I wouldn't say that i have "true friends" at work but it amazes how people pose in the work force to act as if they are someone they are not. If you are a christian, people treat you so much differently. I try to make it evident throughout my job, that I am a christian. Of course this a struggle with every christian, because it is so easy to "go with the flow". It is respectful to hold your tongue and not use slain words when Godly people are around. BUT, what if a christian says something that isn't classified as proper? The other day I was in the office and i was having problems with my computer. I let a word slip. It wasn't bad, I mean rivers and lakes have dams... you catch the drift.. Right when i said that, people looked at me like.. ohhh did churchy boy just say that. Those words have nothing to do with someones personal relationship with Jesus. YES, bad looks were given to me. Yet, I'am a huge sinner, as well as everyone else in this world. But people make mistakes but, should not be judged upon that. Maybe I should watch what i say, but unbelievers should know that christians are not perfect and will make mistakes.