[wayn3]

if you dont want to say that you work for the military, just say what youre working on.

Instead of "I'm working on stealth technology for unmanned carpet bombers" say "I work on next gen nanomaterials that can bend a broad range of wavelengths around objects - to make them invisible - like the invisibility cloak in harry potter".

Whatever. Frame your reality the way you want it to appear. You're not testifying before a court. Leave the things you dont want to say out.

Just make it sound exciting. Amuse yourself. Don't be apologetic.