How to unofficially accept monero ?

How to unofficially accept monero ?

https://teddit.net/r/Monero/comments/14qm0lf/advertising_accepting_monero_without_advertising/

I think this guy's talking about accepting it under the table.
If I should, i would only accept to people i know then i don't have to fear about being publicly tagged as a monero merchant.
How you would did ? (You can do a one-time account to reply anonymously)