Congrats on your capture (there's probably more, along with a mom). Best way to socialize a kitten is to cage it in a roomy enough cage to allow for food, a litterpan, and a place to relax. I cover cages over except for the front, as it gives them a sense of security. Set the cage up so you have easy access to the litterpan & food. Putting it up back only makes for an easy escape route for the kitten. I usually leave them alone for a day until they settle in, and give them lots of wet food etc. In a day or so try to see if the kitten will let you approach carefully, and slowly. Don't try patting the kittens head, but go toward the back. A hand coming at them is scary! Best time to attempt patting is while they're gorging on wet food. Always move slowly, and talk in a quiet voice too. It sounds like the kitten has a good chance of becomming social if given the chance. Most shelters won't accept a feral kitten unless they have a network of foster homes willing to do the socializing. The kitten won't come around as fast being loose in the room. We can look very frightening to them, and chasing them around to try and hold them is terrifying for them, and you risk getting bitten or scratched that way. I've socialized probably a few hundred ferals by now, and 99% do come around when given a chance. Some may take longer than others, and some may only bond with one person, so if you have friends or family willing to interact with the kitten as well, it will make for a better socialized kitten.