Guys, is this a bad sign?

there's this guy in my class who idk, he's talked to me once and seemed to be kinda interested and I was too but I've kind of messed up opportunities with guys in the past, we Haven't interacted at all since is that Because he just lost ./ doesn't have interest or would he like me to try and make a move now ? I've never been good at flirting and stuff so I just don't really know how the game goes ha ha thxx