@FeX32,
People like me suck at BS'ing. It is an art. I am not promoting it but saying that it takes skill and balls of steel knowing that any moment you could get called out.
I am a man of pride and I would not like to be called out in public, but to be a good BS'er you have to walk a fine line.
Engineers are in general terrible BS'ers. Cos all we speak are facts and numbers. We don't know to sugar coat things or make rough edges smooth. All we know and care for are numbers.
I have a colleague at work who is super good at listening to what you are saying and repeating it verbatim somewhere else and people think that "oh wow". What they don't really know is how much that person does not know. But it does not matter. All that matters in the short term is how much you make people someone else believe how smart you are.
Again, you don't work too long with clients to give them the opportunity to figure you out. Co-workers is another story.