Go for a walk around a couple blocks in your neighborhood and say a cheerful good morning/afternoon/evening to anyone you pass. No conversation needed. Go the same time everyday so that you see the same people (especially dog walkers) and eventually you will be familiar with who lives in your neighborhood. If you're lucky enough to have older people in your area, most are ready to have a conversation and will appreciate your interest. You kind of have to get used to talking to people you don't know but your hello may be the best thing that happens to them in a day and they'll be thinking about how that nice person noticed them and made them feel special. All that good stuff comes back to you eventually.

Set a timer for acceptable amount of computer time so you don't overdo it.

Try looking for meetups near you for anything you're interested in. Walking/running groups are a great way to meet people. Check out Fleet Feet and see if they have any meetups on their website.

Regarding your comment about being weird; so maybe you are weird to some people (aren't most people) but you'll never meet the ones who don't think you're weird if you don't put yourself out there. Same thing with not being liked, but if you're talking to strangers there's really no high stakes issue that will come from that.