If indoors, wear a mask. The exception would be in your residence hall room (alone) or if you are showering or eating.
If outdoors, wear a mask if you are in a group of people and/or cannot maintain six feet of distance between you and the next person. Pro tip: much of the time when you are just walking around campus, you might not know when you are going to run into other people and want to talk to them, so it is probably safest to plan to wear your mask.
If outdoors and you are in a group activity that involves elevated breathing (e.g., “Spikeball”, soccer, etc.), both masks and 10 feet of distance are required.
Full policy is here.