how can i seduce the girl i like and make her like me too?

You don't love her! You don't even know much about her! Don't confuse love with lust!!

You can't make her like you, and if you are given any ideas, ignore them! It will end in failure. Any control measures are deceptive. Treat her as a person, not a trophy. Seduction often has the idea of deception. That is not they way to handle people's feelings. It also can mean to entice to have sex. That tends to look on someone as on object, not a person. Steer clear of any of those connotations.

However, it can mean to attract. To do that, you must be attractive: Appearance and character are a start.

• Look in a mirror - what do you see? Is it attractive? What needs improving?
• Are you clean - make sure you wash and use deodorant. Hygiene is important!
• Talk to her!
• Take an interest in her and her interests.
• Find out about her hopes, fears & values, and embrace them (before you embrace her!)
• Share your aspirations, interests and values.
• Don't be offensive - in any way. Treat her with respect.
• Don't be bullish or borish.
• Be a 'gentleman'
• See her as a girl, not a boy with a female body!
• Give her no reason not to like you.

Hope that helps as a starter.