Like they said, sit up straight.
Ways that make you appear shorter is slouching, slouching will make you appear shorter so if you stand straiter you will appear taller
If she sees a picture of herself slouching she may realize how bad she looks slouching. When I was a teenager I didn't realize what I looked like slouching until I saw a picture someone had taken of me and I about freaked out! Ever since I have been very aware of my posture.
You make yourself
make yourself disgusting
Slouching Towards Gomorrah was created in 1996.
Slouching Towards Bethlehem was created in 1968.
Slouching Towards Bedlam happened in 2003.
Slouching Towards Bedlam was created in 2003.
Slouching Towards Liverpool was created in 1993.
Clean it yourself
No because slouching can mess up your composure
you can eat sugar free candy and lots of it and it will make you stop growing