Funny story: One day, my manager says "knives are a fireable offense, I don't want to see you with a knife again or I'll fire you. That same day all of the DM's and execs from corporate come in to help revamp the store and process new displays and inventory. The VP asked if anybody had a knife he could borrow to open up some corrugated board and I gladly handed him mine. My manager was present and openly scolded me, then the VP stepped in and scolded her, and told her outright "HE is allowed to carry whatever he wants....here's your knife back, thanks." Probably my best day working there.
I work in an office and now carry my ZT 0350 and when I open it with the flipper it makes a distinct "click" that seems to attract attention.
Now you just need to invoke a sense of happiness with that action so people begin to appreciate it. Take a page from Pavlov: every time you open the knife, make sure it clicks really loud. Immediately walk around the office and pass out a piece of candy to each person in ear-shot. Do this for a few weeks and then stop giving out candy. Eventually, everyone will being to salivate and feel a sensation of contentment whenever your knife is open.