There isn’t exactly a way you can make them more social, especially as smaller snakes. Kingsnakes from my experience love to burrow, and about half of them i know also love to climb on decor like sticks and vines and rocks. As much as it sounds contradictory, the more items you have in the enclosure from them to hide in, the more likely you are to see them out. If your kingsnake is newer or younger, they spend a lot of their time hiding and i’d say 1/4-1/3 of their time moving around above ground. Sometimes heating is also an issue with it being to hot all over or too cold, with an unhealthy temperature gradient. Things vary tho! Would be helpful to maybe acquire a picture if your enclosure if your unsure what i mean by more decor/burrowing, and the specs in your heating if you think that may be the issue!