Um... That's an odd question. And one that has nothing to do with mormonism...
Of course I'm honest in my dealings with my fellow human beings (some of them are women, you know). Not because I'm "commanded" to. Not because I fear being punished by an imaginary magical man in the sky if I'm not. Because it's the *smart* thing to do.
See, being honest with your fellow human beings is a good way to help insure your success (social, business, marriage partners, family ties, etc.) in a society of humans. Being honest, kind, generous, etc. is the smart thing to do.