What to expect living on base?

My husband (24M) and I (25F) will be moving soon to whichever base he gets assigned. I've posted to another sub-reddit specifically about on-base housing, but what other things will I need to know living on base? Aside from not using my husband's rank as my own, and not banging anyone else, I'm pretty clueless about anything else. I have no idea what kind of community to expect, or even what kind of facilities are on base (which I know can be different depending on where you are). Any and all advice to a newcomer would be welcome! Also as a civilian living on base, can I come and go as I please? (Editing to add he joined the Navy)