The models are asked to keep their face straight because they are nothing but mannequins up there. They are not supposed to smile, show teeth or any aspect of their personality because as humans the first thing we try to do is try to connect to the person in front of us through his or her expressions.
What happens after 10k followers on Instagram?
Once you have 10k followers, Instagram will make it easier for you to get people to your website via Stories with the swipe up to link feature. Swipe up is the only way to get a direct link from your Instagram to your other web properties. And, it’s available in STORIES, if you have 10k followers.