My own "moving slowly" consists of lots of walking. Nothing fancy about it. I just get out and walk around the neighborhood several times a day, take lunch time walks at work, walk my dog the half mile to the vet instead of driving there, etc.
As a college student, you might already be doing a lot of moving slowly if you're on a big campus and your classes are spread around. The free e-book available on this site recommends 3-5 hours a week of low level aerobic activity: walking, hiking, cycling, swimming, working in the garden, golfing, etc.
Live your life and love your life. It's the only one you get.