I remember in high school when I would hang out with the people I considered to be friends, and I would always end up at the back of the group while walking, or just outside the circle when stationary. I eventually got into the (probably bad) habit of not saying anything and leaving because no one ever gave a shit. It would have made a HUGE difference had someone waited for me.

And for the person suggesting you walk faster: I am a fast walker. I'm just also socially awkward and was very much not confident about myself back then.