Look at how she acts when she's around you—open body language, eye contact, and physical touch are signs that she could be interested. See what she says during a conversation; if she likes you, she might compliment you (or even tease you). Get the ball rolling by offering her a smile and striking up a conversation.
Touch their arm or knee when you laugh at their jokes. Notice when their glass is empty, and always offer to fill it up or get them another. Make eye contact from across the room at parties; smile. If you get an inside joke going between just the two of you, work it into conversation often.
Even when you're looking for signs she's into you, they can go right over your head. If she brings up a new restaurant she wants to try or how she is dying to go to a local game she isn't just making conversation. She is giving you a set-up to make a move and ask her to hang out one-on-one.
To impress a girl, enhance your personality, develop your sense of humor, and build self-confidence. Focusing on common interests and doing exciting things together will help you know her better. To make her want you, offer to be her friend, share your feelings, and express your love for her in different ways.
What You Should Do: Leave the door open for her to think it over. Get to know her better as a friend and a person. Relationships take time to develop, whether they're romantic or not. There's no need to rush, and there's no need to feel stupid for getting the feels for a girl you know.
If your crush feels they can open up to you about anything, they probably like you. It is true if they tell you about things they don't usually share with others, such as serious problems at home or work or something they don't share with others. If they trust you enough, it's a sign they are attracted to you.
If they really like you, your crush might do things like act nervous when talking to you, ask if you're in a relationship, or come up with excuses to hang out with you. Try not to read into your crush's actions too much, and remember that you can always be straightforward and ask them if they like you too!
In his book he examines five key styles: polite, playful, sincere, and traditional. Take the quiz here to see which one you are. There is no right or wrong way to flirt, but according to author Jeffrey Hall there are five different styles.