Lexi, I do the same thing and feel like such a loser for it sometimes. But I feel like it's rude to just shove a playbill at someone without saying something, especially if you HAVE something you would want to say to them.
Michelle Federer was signing at the Wicked stagedoor, head down, just moving down the lines and mindlessly signing playbills that were held out. When she got to me, I blurted out that I thought she looked gorgeous at the Tonys (which was odd, it wasn't something I planned on saying or anything, it just came out, but whatever). She looked up, gave me a huge smile and said "Thank you!" and sounded really sincere. Then when she passed by again to leave, she said bye to me and smiled again. There were like 30 people at the Wicked stagedoor, so at first, I was just confused as to why she responded to me, but not everyone else. Then I realized that she probably responded because I actually said something to her instead of just demanding and autograph and a picture.
I've said this so many times before, I know, but I'd rather be the oddball that talks to them than to just get an autograph and get out. If they really don't want to talk to you, they won't respond, but the actors I've spoken to have all been incredibly nice. Better to say something when you have the chance and be memorable than to fit into the faceless autograph seekers.
Like a firework unexploded
Wanting life but never
knowing how