That can be tricky, especially if you were good friends with any of them.\nThe best thing to do is to just be honest.  Tell them that you have changed, and your interests have changed, and you just do not feel that you have anything in common with them anymore.  Let them know that you do not have anything against them, you just need to be on your own for a while, you want to meet othet people and explore other options.\n\nGood luck.