A shy guy needs a little help.......?

start it off jsut wiht 'hey!' again and crack a joke! girls love it when guys make them laugh then try to flirt a little bit. if she returns the flirting or is open to it, great! talk to her in shcool. if she isn't lay off for a little bit and talk to her face to face a few days later. you'll know for sure then if she's into you or not. good luck!