I know three people outside of school, and I rarely talk to or see any of them. I may get a phone call from one or two of them possibly once in two months, maybe once a month tops (unless there's some good reason to otherwise contact me.)
In school, I consistantly talk to one person. We're friendly and eat lunch together, but are very mellow. We talk a bit in class sometimes as well, but not too much.
In school, I sometimes get little smiles, hellos, or maybe a literal minute's (no more than three minutes, usually) worth of small talk from one to three people a day. There's no personal connection, just courtesy.
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"I've been really, really anti-social for the past few years, and I'm just starting to get over it, and come out of my shell, and be able to like people again" - D'Arcy Wretzky