i know it's weird but probably my favourite thing to do on lsd is interact with animals. i for some reason always feel a special relationship between me and my dog when I'm tripping, sort of like I finally see the world the way she sees it and as if she knows that I see it that way now. It's strange but I love it
other than that, music, nature, festivals, random walks, stargazing, trippy/funny tv shows, MAKE music or any other sort of art if you have a creative nature, the list goes on