Be as loud as you possibly can on any work related call to throw off anyone who is onto your “busy” antiques.
If your boss is walking around, start yelling as if you are at a U2 concert. The whole floor needs to know that you conduct your biz loudly
Alternatively, you can always head out for an “Important Meeting” (i.e. 10 minutes of Nandoo walk) and get rained in dope-ass cash rewards! No pressure, totally your call, but really…