Guys are pretty obvious when it comes to whether they are interested in you or not. All it takes is the ability to read the signals.

• Looking. Some guys are shy and a bit insecure. If you see them glancing at you repeatedly, they’re probably interested. The best thing to do is to help them out a little, and go talk to them.
• Teasing. Some guys never got over that playground flirting technique where they make fun of you. Most guys make it playful and not hurtful, however, so be sure to separate the jerks from the flirters
• Compliments. When a guy says nice things to you, he isn’t simply being nice, he likes you and is trying to show that to you through compliments. Keep it flirty, and act on mildly interested to get him to try harder.
• Touching. If a guy is constantly touching your arm, back or leg, he most likely is flirting. Unless he’s being inappropriate, and is staying cute, then you can be sure that this guy is interested.
• Smile. If the guy who you’re talking to has a huge grin on his face, he’s showing how happy he is to be talking to you. Almost a sure bet that he’s interested. Keep in mind the difference between a smirk and a smile, however. One is good, and one is bad.
• Mumbling. The shy guys will mumble when talking to you, because they’re so nervous of screwing up their chances with you. Be nice, and if you’re interested back, don’t work too fast. They’re probably the sensitive types, and want to love, not just get laid.

Hope that these tips help you the next time you’re unsure of whether that special guy likes you or not!