Jacqueline Jossa pointed to a mistake shoppers have been making amid the coronavirus outbreak.
The former EastEnders star, 28, took to her Instagram stories to educate her 2.7million fans on cleanliness on Saturday amid the health pandemic sweeping the globe.
As she was waiting in a shopping queue to get inside the supermarket, the actress was surveying the many shoppers.
The mother-of-two shared she was surprised to see so many people wearing masks still touching their faces.
Jacqueline warned people would still get germs on their face where they were fiddling with their masks absentmindedly or adjusting them.
Also, the I’m A Celeb winner urged her fans not to touch the shopping trolley and then their face – even if they were wearing gloves.
She said: “Just a tip for you guys, if you’re wearing gloves and then you are touching this (the shopping trolley), there’s no point wearing a mask.
“Pulling it up towards your face, you will get germs on your face. Anyway think about it.
“I’ve been watching loads of people in the queue literally touching their face.”
Jac has been holed up at home in quarantine with her husband Dan Osborne and their two daughters Ella, four, and Mia, one.
They have been living happily together in isolation, trying to make the best of the situation.
Jacqueline heaped on the praise for her girls for not complaining much and for staying in since the UK lockdown commenced.
She wrote: “Well done to my little baby girls, staying at home, barely moaning about it, and just getting on with it.
“We forget to thank them and say well done for taking on this super weird time when they can’t go see nanny and grandad, they can’t go out to eat, or go to a friend;s house or play with their cousins, all they can do is stay indoors.
“At least we can go to the super market if we need, but they can’t come with us. My babies have literally been indoors for two weeks and not once moaned about it.”