From the beautiful RedheadAblaze     

Flirting 101

So you just looked up from your Big Mac and spotted a guy/girl across the room so hot that you lost your pickles.  You know what I'm talking about. That person that's just so scorching hot that your heart speeds up and your brain says "abort" but everything else in your body says "giddy up".  From here, you have a couple choices: (1) You can sit there, paralyzed, wishing that you could approach your Adonis/Aphrodite.  (2) You can make eyes from across the room and hope that they walk over to you and do the heavy lifting.  Your reaction at this time can lead to either your going home alone or with a number, so choose wisely.  If you chose (1) or (2), then you've died a horrible, lonely death in the eyes of your hottie. Game over. Turn to page one and try again. But, if you chose path (3), proceed to the next paragraph.

Ok, so you've gathered some testicular fortitude and decided to take some action.  Good for you! You're one step closer to happiness.  Now here is where the tricky part starts.  Everyone needs somewhat of a game plan. For some that is relying on their conversation skills.  For others, it's on their sense of humor.  And for others, well, their looks.  You need to decide what your best characteristic is and run with it. Don't pretend to be something you're not or you'll crash and burn worse than the Hindenburg.  Here's where a little finesse is necessary.  Practice this in front of your mirror if necessary. (All of you know who you are!)  Walk up to your potential significant other and do the unthinkable ... say "hi."  I know, it's so hard, right? If you walk up with all the confidence in the world (read: confidence, NOT cockiness) and portray yourself as being comfortable with yourself, you'll indefinitely attract more attention.  That person will start to think, 'hmmm ... I wonder what makes him/her so confident' and in many cases, they'll be drawn to you. I know one guy who is less than attractive who could get any girl he wants ... and he used to be the fat kid in school. "Hello," "may I stand here?", "Is this seat taken?", "Crazy weather we're having," etc. all will suffice. Just find an opener that suits you and your situation.  If you can both laugh at something awkward or inappropriate, you advance two steps.

So now that you've said hello, you need to work from there.  Your palms may be sweating and your heart racing, but act cool and collected.  Nervousness is contagious.  It may show as just nervousness in you, but it might turn into agitation or serious creeped out-edness in the other person.  Being honest works wonders.  Even better, be honest and pay them a compliment.  Lines that I've used: "I just wanted to say that you are the hottest guy I've seen in three years," "You have beautiful eyes" (yes, I said that to a man), and even "that is an amazing tattoo ... can I see it?" Ladies, the tattoo one works wonders.  Men love to show off their tats, and even some women do too!  All of the above have worked wonders for me.  And in all three cases, I was the one to approach the guy.

At this point, you've either successfully attracted his/her attention or didn't talk loud enough for them to hear.  Now you just need to keep them interested.  The most luck I've had is by relying on my wit and sense of humor, but like I said stick to what you're good at.  Make it a point to listen to what they have to say and drop it in the conversation later. It shows that you've been paying attention and makes it seem like you're interested.  After that, be sure to walk away before you make a fool out of yourself and tell them that you'd like to carry the conversation on at another time. It'll put the ball in their court and, hopefully, land you with their number in your phone.