Make them smile!
How do you make your kids smile for pictures? I just posted a mom moment of one of my favorite pictures of my big kids: https://moms.com/moment/150956/our-mom-is-funny/
For that picture, I told them one of their favorite knock knock jokes... made up by my 4 year old.
Interrupting Mommy w
(in a falsetto shrieky voice) MASON, AUDREY SMILE FOR THE CAMERA! (or anything else you want to say as long as you use the insane voice)
I tell them to think of something funny and start to laugh. That smile as you laugh is genuine.
But those awkward kid photos are priceless and it's funny looking back at mine now. Kinda gotta have em.