Summarize this article in one sentence.
It can be hard to catch a girl's attention if she thinks you have other commitments. Don't spend a lot of time hanging out with other girls in a one-on-one setting. Consider mentioning that you're single around her, but don't force it into conversation or say it in a way that is self-pitying. Mention how you wish you had something fun to do on a night you're free. Your friend isn't going to make the move while you're out with your friends getting fast food. Figure out something that the two of you can do together alone. Don't do something dramatic like taking her to a fancy restaurant. Something as simple as going to the park together is fine. Let her know that you are interested. Flirt with her a little bit. If you aren't sure how to do this, just smiling and laughing a lot while you have a conversation is a good place to start. Don't do it too much or it will seem forced, but doing it more than usual will let her know you are really enjoying talking to her. Playing hard to get isn't going to work. Be open and honest with her. Give your honest opinion if she asks you what you think about something. You don't have to wear your heart on your sleeve, but you should be willing to talk about your feelings to a certain extent. If she's flirting with you, flirt back. Gently tease her. Mirror her body language the best you can to make her comfortable. She's never going to make a move if she doesn't think you want her to. Ultimately, there's nothing that you can do that will force the girl to make the first move. You can only hope that she likes you and try to set up the right situation. If it seems like things are going well, relax and go with the flow. There will be a moment when it's clear she's going to make a move where she slides close to you or makes eye contact for a long time while smiling.
Make yourself available. Set up an "accidental" romantic situation. Drop hints. Be open. Encourage her. Let things happen.