In one sentence, describe what the following article is about:

Flirtatious eye contact can come in a few different forms. Generally, you need to maintain eye contact for at least four seconds before coyly looking down or away. Holding his gaze this long lets him know you’re flirting.  If you’re feeling really bold and sexy, you can subtly lick your lips. This is considered rather forward, so make sure you know what you’re doing. There’s a difference between flirting and staring. Make sure you’re reading his signals and responding, not just staring at him. It may seem obvious, but if you’re feeling very nervous or shy, you may forget to smile. However, smiling is important. It sends the signal that you’re friendly and approachable. It also shows that you may be interested. Smiling with your teeth showing and your eyes creasing around the edges conveys warmth and gives the appearance that you’re genuinely excited to see him. ” This is another example of something that may be easier said than done. If you feel very shy around this guy, that’s perfectly normal. However, you want to feel comfortable enough to at least say, “hello.”  You can wait until he looks at you or catches your eye. Once he does, say, something casual, like, “Hi. How’s it going?” If you generally say hi to him in the halls or at his or your place of work, bump it up a notch by adding something like, “Good morning,” or “Nice to see you.” This can be an easier step than saying hello in real life. If it wouldn’t seem strange, become his friend on Facebook or another social media platform. This works particularly well if you have mutual friends or run in similar circles.  If he’s someone you’ve been following on an online dating site or app, you can use the app to indicate through your profile that you like his profile. When you like his profile or request to be friends, it can be a natural time to send a brief message. Even something like, “Hey! I really like those pictures you just posted” can be a conversation starter. This can make you look and sound very confident. Say something to him about your surroundings. This invites conversation and lets him know you’re interesting to talk to.  You can say something like, “Wow, this weather is incredible, isn’t it?” or “The coffee at this place is incredible.” You can also ask him for help or directions. Say something like, “I’ve never been here before. Do you have a type of coffee you’d recommend?” or “Can you help me figure out how to get to the library from here?”

Summary:
Make flirtatious eye contact. Smile. Say “hi. Like or “friend” him on social media. Make a statement.