A smile is contagious and spreads from mouth to mouth, especially between two smitten partners. If your other half mirrors your display of joy, it means your relationship is healthy. On the other hand, if they look at you like you're an alien and remain closed off to your feigned happiness, either they take longer to understand, or they're not the ideal man you think they are. This is the message behind the "smile test," yet another social media challenge for couples.<\/p>\n
First there was the \u201corange peel theory<\/a> ,\u201d which measured a couple\u2019s compatibility based on the peel of an orange. Then came the \u201c bird test<\/a> ,\u201d which involved marveling at a pot on the stove or a bird in mid-air and rating your partner\u2019s reaction from 1 to 10 on an enthusiasm scale. And now, couples are playing another romantic game on social media.<\/p>\n The rule is simple. Just smile for no apparent reason at the camera and mime a "copy-paste" effect on your partner's face. Internet users, always on the lookout for these techniques that find proof of love<\/a> in any situation, make a hand gesture as if to apply their sunny emotion to their partner's face.<\/p>\n Whether in the car, at the beach, or at home, they hope to see their partner sport the same happy expression and rely on the mirror effect. Faced with this smile that seems to come out of nowhere, some partners don't hide their incomprehension and remain unmoved. Conversely, others spontaneously mirror their sweetheart. The most popular video is that of the duo @kayandtae<\/a> , a couple straight out of a romantic comedy, a modern-day Romeo and Juliet.<\/p>\n The content creator, sporting a smile worthy of a toothpaste commercial, walks towards her partner, and she didn't even need to use any magic words for him to share this positive emotion. In the caption, she adds, "It's a green flag." <\/p>\n\n