McDonald's worker reveals the 'truth' about the drive-thru order process in stores around the world - shocking thousands of customers

The truth behind the smooth operation of McDonald's drive through service has been revealed by a young worker over TikTok.

When customers are ordering their meals in drive-thru a camera takes a photo of their car - so the staff member at the cashier window knows who orders belong to.

The young woman, who posts under the username Katieeclarkee, films her register in the video which clearly shows the order and the car.

'There is a camera and it takes a picture of you and your car,' she said.

'So maybe don't pick your nose when you order - because we see it and we judge you,' she said.

The system was implemented after most drive-thru's became multi-lane, according to workers in the comments.

The system makes it easier for staff to serve food in the correct order, even if the orders of the cars change at some point before the cashier window.

One worker said she has seen people scream and hit the car's steering wheel in a fit of rage when products are unavailable, because of the little-known camera.

One customer said he though drive-thru staff just had 'crazy-good memories'.

The 17-year-old was slammed for working at McDonalds and had to defend herself against trolls who called her stupid for having the job.

One worker said she is 'waiting for the moment customers realise they can be heard from the moment they pull up to the speaker box'.

Recently a model wowed the internet after sharing a 'game changing' hack for eating a McDonald's meal inside a car.

Model and dancer Cristian Liberti, shared a TikTok video of himself balancing his burger and fries on top of his drink, using the straw to hold the meal in place.

The ingenious hack includes balancing the burger box on top of the drink, which gives you two trays - one for the burger and another for the fries.

The Sydney-based model shared the tip online to his 80,000 followers.

'You get your burger, open the box and get your chips and tip them into the box,' he said in the video.

'Then get the straw from your drink and push it through the middle of the box. And then that's it, enjoy.'

The video has since been viewed more than 300,000 times, with dozens saying the hack is so simple, they wish they'd known about it sooner.

But other viewers claim they've known about the model's hack 'for decades.'

'I've been doing this since I can remember', one wrote.

'Good luck trying to do this with paper straws', another said.