Seven, using an Orvis travel vest, jeans, and a polo shirt.
I had a double shoulder rig with a Sig 239 and 226, a belt slide SOB 228, cross-draw 225, ankle Tomcat, pocket S&W 60, strong side 1911. Extra mags were in the vest. Don't ask about knives & OC, cellphone. Not all that comfy, but OK for just walking around. I did it for a PD presentation/demo, I think I made more friends than not.