Over the Christmas period we’re all bound to divulge in a few Christmas movies and holiday specials, however do you know if your friends and family are actually enjoying themselves? A study conducted by AO.com & Liverpool John Moores University has identified that people will often say and think one emotion but their body may be reacting in a completely different way.

A group of 21 participants claimed to experience only the slightest increase in happiness (just 13%) when watching a movie, but their bodies showed an increase of ten times that rate. So the question is are these participants aware they’re enjoying the movie and are just too embarrassed to say?

The human body has a number of giveaways to reflect someone’s emotion meaning you’ll be able to tell if they’re lying when they say “I didn’t enjoy that EastEnders special”. AO,com’s new study reveals how to do this.

Zygomaticus Major

This is a muscle that is located slightly above the cheek and is associated with positive emotions; almost like a secret smile. A twitch can indicate someone is enjoying something even if they won’t say they are. This is a great giveaway if someone is watching something they claim to dislike. Keep an eye on your partner, brother or dad when you’re watching Frozen, a twitch of their mouth will tell you that they’re singing “Let It Go!” on the inside.

Corrugator Supercilli

A muscle that sits across your eyebrow, the movement of the Corrugator can indicate when an individual is having a negative experience. The movement of this muscle is a huge red flag when watching most Christmas entertainment, however if you prefer your programming to make you anxious or scared then this is the muscle you should look for. Notoriously scary movies such as Krampus and Gremlins should have your eyes twitching.

Skin Conductance Levels

Skin conductance is essentially how sweaty or clammy an individual becomes during an emotion response. If you are watching Home Alone this Christmas, look out for any signs of anxiety during the scenes with Kevin, Marv and Hank, as this can be a key factor in producing this response. You’ll be able to see just how scared they are for Kevin, no matter how many times they’ve seen it.