Howdy,
Congrats!
So, how did the "Wally Walk" go for you?
Don't worry about anyone noticing your gun because everyone is clueless.
I've been carrying for over 31 years ( I'll be 49yo next month so do the math ) in all these years no one has ever mentioned my gun. I see people I work with in town when I'm packing, which is 99.98% of the time away from work, and later I'll see them at work and I'll ask them if they noticed my gun, usually a Glock 23 carried in a Glock holster OWB at 3:00 and they always say the same thing "You were carrying a gun?" and this comes from people that I see almost everyday at work and that know I have a CCW permit and carry a handgun.
People are clueless.
Carry, carry all the time and be safe.
Paul