these are my rules to recognize a pro.
there are 3 types of partygoers:
professional - they are named on the website, fuck without condom, take more then a cumshot, dressed like porn actresses (high heels, fishnets, brasserie, etc), usually are alone;
semi-pro - actually amateur starting their career in porn, they fuck regularly in various scenes with condom, sometimes take cumshots, dressed normally, often with just one friend;
amateur - usually suck, sometimes suck various strippers, very rarely fuck with condom, very rarely take cumshot, dressed normally, often in a group of friends.
Do you agree with me?