I have posters, some are on my wall, but they're the tiny ones. The bigger ones are just sitting in my room. I want to hang them up. But like, I don't know how? I don't want my wall looking bad.
well hang your big posters in middle and small all around...probably you can use a very sticky double tape or you can even frame your posters and hang them!!!
Glue around the edges, like, a hot glue gun maybe?
Stapler? I used to do that. I don't know why.
Also depends on your walls