From the moment Donald Trump’s election victory was confirmed on 9 November, all sorts of businesses have had to keep alert to the fallout of a result they didn’t expect. Use of online dating site eHarmony spiked by 35% in the US in the days that followed the Republican’s victory.

Basically, all scams appeal to some combination of two emotions: greed and fear. By playing on these emotions, a good con artist can often convince even the most skeptical people to forgo their better judgement when asked to part with their hard-earned money.

Showcasing your best qualities in the real world can be tough enough; but online you’re expected to highlight them solely through a few paragraphs and pictures. What could go wrong? Grant Langston, CEO of the online-dating site eHarmony , recently spoke with Business Insider about the biggest mistakes people make in online dating – and how they can correct them.