I keep the gun hand empty.
I always TRY like H E Double Hockey Sticks to keep my gun hand empty...or at least if I am carrying something in that hand, I can drop it like a hot potato, and not care.
I keep my backup gun on my weak side, and it is accessible by either hand, so I remain cogent of that too.
Often times, when walking to and from car in late evening, I have my hand on an Airweight Bodyguard in my windbreaker pocket. Yes...even in Phoenix in August...you can wear an UNLINED windbreaker, and the Bodyguard has the "hump-back" profile concealing all but the tip of the hammer.
Another favorite is to carry a HOT cup of coffee, tea, or hot chocolate in my left hand. On one occaision I was confronted in a parking lot of a convenience store by a couple of scumbags asking for a cigarette. I don't smoke and told them so. Next they asked for money. I believe my reply was a suggestion that they find gainful employment, with whichto supplement their begging income...or something similarly sensitive.
The loudest one squared off and told me he was going to "kick my fat a**".
I stepped back a little, yelled "PLEASE DON'T HURT ME" (So the witnesses would remember that when the cops showed up), he took one step forward, and got a faceful of hot coffee right in the face.
Then his partner got his mullett grabbed and the rest of him slammed into the ice machine.
I called 911, and when Phoenix PD showed up...everyone said I was acccosted, and was defending myself.
But, at 6'4" and 400lbs...I normally don't get hassled,I walk with a purpose, head held high, always scanning, and looking anyone I see RIGHT DEAD IN THE EYE. I let them know that this Grizzley Bear will bite any wolf or coyote on the prowl right in the rump roast.
Works on the little gang banger wannabes you are likely to run into around here.