I suck at approaching people, especially those I find attractive. My mind goes completely blank and I can't think of anything to talk about.

Even if I do miraculously get a guy talking to me, how do I make my intentions known? I'm not the flirty type - I'm not nearly hot nor confident enough to act sexy. I'm not an ogre or anything, but if I tried batting my lashes or sucking on cherries all seductively like they do in the movies, it would look downright ridiculous and have the complete opposite effect of what I want. And considering how hard it is for me to just approach guys, you can probably guess that I'm not the type who can pull off the straight-to-the-point, "let's have sex" speech.

Ladies and gentlement of reddit, please help this horny shy girl get laid.

EDIT: Holy shit did you guys deliver! For all those asking, I'm about 5'5 and my weight usually fluctuates between 125-130 lbs (I'm still carrying my winter layer around so I'm probably closer to 130 right now). But thanks for all the advice guys!