Its ok I was definitely socially awkward when it came to school and sixth form. I had to accept that im not one of those life and soul of the party people and could not be interesting 100% of the time. Theres certain conversation topic stoppers. Weather 90 seconds you can talk about the weather and then its conversation over. Some things can be good. Like for example. TV shows. TV shows you can branch off like ooh did you see X on show Y, what did you think about that? Or TV shows in the past when I was a kid, thats always a nostalgic topic, which ends up on chocolate bars that you could get back then but not now, or toys. Remember the ninendo wii? lol, Music is a good one as well because you can find out about what festivals they want to go to.
Also as well, if you do want to go a bit deeper can you talk about your family. Im not saying anything too personal, but this opens up a channel to let them know that they can also talk about their private life to you.
And keep at it as well. Not every person turns out to be a friend, but thats ok. Some will and some wont. Its best to have a couple of close friends, and some just friends that are like ones you hang around on the odd occasion, and some just simply aquaintances that you speak to in passing from time to time. There are so many layers to being social with different people and thats fine 🙂