Summarize this article:

If you want to be more than friends, work on conveying confidence around the guy. If you want him to return your attraction, simple confidence goes a long way.  Many people feel inclined to be goofy or self-depreciating when first meeting people. While this tactic goes a long way in terms of making friends, it may falter when you're trying to attract a new romantic interest. Instead of jokingly poking fun at yourself, strive to convey confidence. You can be funny. Funny can be very charming, but stick to making jokes about topics other than yourself. Try to be comfortable with yourself in general, smiling, standing up straight, and participating in conversation without hesitance. Try to get a sense of whether the feeling is mutual. If you sense mutual attraction, you may feel more comfortable eventually asking the guy out. Keep an eye out for signs of interest.  Watch his body language. If a guy wants to be more than friends, he'll use many excuses to touch you. He may offer a hug upon seeing you for the first time. He may brush his fingers on your forearm. You may also catch him looking at you during odd times. He may also ask you questions to gauge whether you're interested. He may, for example, ask about your weekend plans. He may also ask if you have dates for certain events, and even offer to escort you as a friend. If you want to show you're interested, start getting a little more physical with the guy. Touch his forearm while talking. Sit closer to him than you usually would on the couch. Offer a hug when first seeing him at social events. A little physical contact can show you're interested in something more than friendship. Flirtation is also key to showing a guy your'e interested. This can help pave the way to asking him out. Aim for subtle flirting at first, as not to make the relationship too awkward.  Brief eye contact can convey romantic interest. Catch the guy's gaze for a few seconds and then look away. You should also smile and act happy in general when around him. Try to mimic his body language. Do not be too obvious about this, but try to imitate his hand gestures and the way he's positioning his body. For example, if he's crossing his legs, cross your legs as well. If you're really interested in someone, especially someone who's also a friend, you may be inclined to clear your schedule to make room for a potential date. Refrain from doing so, however. If you make yourself completely available, while the other person remains occupied with his or her life, you risk creating an one-sided dynamic. You'll be left waiting for a text or call, while the guy carries on with his life.  Keep up with existing social obligations and plans until you've made solid plans for a date. Do not, for example, clear you're weekend because you're planning to ask the guy out. Staying busy can also convey confidence, which can be attractive to many. Having your own life and obligations makes you look more desirable in the eye of the guy.

Summary:
Be confident around the guy. Watch for signs he's interested in you. Start being more physical. Flirt with him. Remain busy and engaged with other social obligations.