Cool! Thanks for the concrete info! Here we go!
Body Language: In my honest opinion, you spend way too much time locked inside your own head. You are constantly looking at yourself from a third person's perspective and analyzing yourself. This time could be put to better use. If you're going to analyze yourself, take the time to notice what you're doing with your body. Are you sitting with your back straight? Are your legs crossed? Maybe pose with your chin on your hand as you look around the room. Are your eyes open wide to take in the atmosphere, or are you squinting at something in particular?
I used to work on my timing until it became rote. I would practice making eye contact with guys for about 3 seconds and smiling coyly, then looking away. If a guy says something interesting to me, I might lick my lips before responding (this takes practice, so start small), or maybe put a finger to my lips while in thought. This attracts their attention to the features I am confident in. And lips are just crazy sensual by nature.
I also play with my skin. This seems weird, but it serves more than one function. 1. It feels good. It relaxes me. I have very sensitive skin and I respond instantly to being touched in certain places. 2. It draws attention to my body which I am very proud of.
Action: Dancing is great. Being goofy is awesome. Puns are delicious! Bravo on all of that. A lot of the above tips will help you practice flirting. People in general will notice how you look first and then use that as a gauge. Think like Brad Pitt and George Clooney from Ocean's Eleven. They had controlled movements. Slow and precise. This made them extra sexy and confident looking.
Another thing that might help is walking. I know I keep using myself as an example, but it's the best I've got for you. I have a swing to my walk which everyone in the world notices. Even my students make fun of me for it. Men love it. I make sure that I walk slowly, one foot in front of the other. My mother taught me that that is how a lady walks. The proportion of my hips and waist together only further accentuates the gait.
The trick to flirting successfully is not to wait for someone else's signals. Everyone wants to be flirted with. I love lavishing men with attention. They respond beautifully and coaxing them into conversation with kind words is fun. Sometimes I even tease them. "Oh hey, you look bored. Come cure your boredom and chat with me."
Conversation: This is some of the most telling information. You like a guy that has a quiet, more innocent demeanor. And you are simultaneously looking for overt signals from said guy. Very slim in this case. You're going to have to make an attempt to read another guy's subtle signals, or just jump in head first regardless of the signals. You definitely have a quiet personality, which is not bad in anyway. You have a naturally shy look about you, which is exactly what your picture is conveying to me with the wide eyes and slightly down-turned face. It's important to know what you have, then you learn how to work with it.
Looks: You do have very shiny, soft-looking hair. Shiny hair is good for touching! You should practice some moves that involve shaking your hair out. Buy a pretty smelling product that you can waft in a guy's face!
Makeup is best when used to enhance features, not cover up flaws. I'm glad you see the benefit of subtle makeup though! If you have tiredness under your eyes, I recommend some sort of cream with cucumber and aloe in it. This will depuff and sooth the skin. Use it daily regardless of the state of your skin and massage it in gently. Skin care is my top priority. I hate layers of foundation so I make sure to wash my face every morning and night (I use Noxema, nothing fancy). I use a good cream in the morning and oxy cream at night. I have a skin condition called keratosis (it's very common) and so my cheeks get a little ruddy from time to time, so I exfoliate every other day. This keeps my skin bright.
I'm obsessed with lipgloss and mascara. I have super long eyelashes and and a full, shapely top lip so I play into those. Rarely do I use funky eye shadows or lipsticks. If I do, it's to accent my natural features, not detract from them. You have large eyes, like I do. You could use a nice violet or brown eyeliner. This will define them. Since you have rounder eyes than I do, you can get away with lining the bottom. (I have almond shaped eyes and it only makes my eyes look smaller) Also, have you ever thought about learning to shape/tweeze your eyebrows? This goes a long way when shaping your face. I spent years practicing how to do this properly. But it's paid off because while others go get waxes, I do a short tweeze session, and I'm good.
I hope a lot of this helped. If you have other questions, PM me, or whatevers.