Do say: "Nice bachata." Don't say: "You remind me of John Sergeant." 7 US site where suitability is measured by tennis level: who wouldn't fall for Slightly Below Average Scott, from Texas?
Do say: "Cool backhand slice." Don't say: "I miss Tim Henman." 8 Cauliflower ears and split lips are the price you pay for dating a real man.
We are, in this sense, the lucky victims of sexual freedom and choice.
One day, perhaps, someone will invent an app that sprays pheromones at you when the right person flits across your screen. No matter how promising the app that is sympathetic to your facial hair: there are no shortcuts.
All of which makes the current trend among the ever-renewing stock of dating entrepreneurs both amusing and ludicrous in equal measure.
The idea du jour is a version of the much older strategy of dating PLU (people like us).
People have been selling new matchmaking ideas in Britain since at least the late-19th century.