The delicious mystery of whether the guy you're interested in likes you too is part of the unique excitement of dating. While you're wondering, however, you can be on the lookout for signs that the guy likes you.
A guy can unconsciously betray his feelings with body language. If he sits closer to you than is normal for "just friends," or if he softens his posture and rounds his shoulders toward you, he may have romantic feelings for you. He may also touch you unnecessarily, such as a light touch on the arm for emphasis when speaking, or lean toward you to speak to you. If he "talks with" his hands, making big gestures while speaking, or runs his fingers through his hair -- a way of preening for your attention -- there is a strong possibility that his feelings are more than platonic.
A guy who likes you will often maintain lots of eye contact to communicate that you have his full attention. He may also unconsciously lick his lips, a sign of anticipation. A genuine smile is also a sure-fire indicator that a guy is enjoying being with you. If his smile is accompanied by a quick raise and lower of the eyebrows, it can mean that he is unconsciously surprised at the depth of his feelings for you.
If a guy is interested in you, he'll show it with his conversation as well. He'll ask about you: your hobbies, work, friends and plans for the future -- the latter can mean that he's trying to see if he fits into your world long term. He'll likely also listen carefully while you're speaking to pick up on ideas for getting on your good side, and speak slowly and softly as a way of showing that what he is saying is for you only.
In the wooing stage, men are all on their best behaviour, but taking a closer look at his will reveal whether he's interested in you long term. If he genuinely likes you, he's likely to contact you during the day for a pleasant escape from work, and sometimes for no specific reason. He may try to get to know your friends or introduce you to his. He'll remember things that you say and bring them up later to show he was listening. He probably won't play games, either; a guy who truly likes you won't run the risk of confusing or angering you with inconsistency.