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You want to be yourself around your crush, so don't center all the conversations around him and his interests — let him get to know you, too. Once you're talking regularly, try to look for shared interests to discuss. This way, you'll get to know each other better and bond through common traits.  For example, say you find out you both like Dancing With The Stars. Try asking him about the latest episodes after they air. For example, "Did you see Dancing With The Stars last night? It was so crazy." From there, you can look for broader topics of shared interests to discuss. For example, "Do you like dancing? I just love dancing and musicals." If a conversation is slowing down, ask a question. Asking someone about themselves will usually keep a conversation interesting. This will also give you a sense of whether you want to eventually ask your crush out. If you have a lot of shared interests and opinions, you're more likely to be compatible. You can ask questions like:  "What's your favorite movie?" "Do you have any hobbies?" "What's your favorite subjects in school?" "What's the coolest place you've ever visited?" "Who's your favorite television character?" When you really like someone, it can be very tempting to try and be the type of person you think they would be interested in dating. For instance, if the guy is really sporty but you couldn't care less about sports, you might be tempted to pretend you're also a big fan. Avoid this. Don't deny your own interests, hobbies, and friends out of fear of judgement or rejection. You can be polite about it ("Oh, I'm not really into football."), and use it as an opportunity to help him learn a little about you ("I actually really love going to see live music."). It can be hard to keep this in mind when you are crushing hard, but remember that someone who doesn't like you for who you really are ultimately isn't a good match for you. If you get his number, texting can be a great form of communication that can help you get to know him better. Try to text him once in awhile and see how he responds. This can help you see if he likes you as well. A guy who texts back eagerly is more likely to be interested.  Be yourself when you text. If he asks you questions, give honest answers. Use your own unique voice and sense of humor. Throw in an occasional emoji. Don't overdo it, but a few smiley faces now and then can come off as flirty. Allow him to initiate texting on occasion. You don't want to overwhelm him. As you're getting to know a guy, try to do some light flirting. This will convey your interest and allow you to get a sense of whether a guy likes you. If he flirts back, it's likely he's interested.  Smile. Smiling is contagious. Keeping eye-contact while smiling is key. This keeps the tension in the air flirty and fun. A smile to a guy gives him motivation to pursue you. Give him a brief smile and then look away. Make eye contact. This will convey interest. Try to introduce gentle touch. Lightly brush his arm when you're talking to him, for example. Some topics can tank a conversation, so they should be avoided. If you're trying to get to know a potential romantic interest, stay away from topics that may make him uncomfortable.  Avoid putting yourself down. You want to show that you like yourself and you're not insecure. Never say anything negative about his friends or family.

Summary:
Discuss shared interests. Get to know him by asking questions. Be yourself. Text him regularly. Try to flirt some. Avoid certain topics.