How to learn how to flirt
It made me
sexier 
"sexy"
How I did it: Start by realizing that every person is a flirtatious being and flirting is something we(even animals) do innately whenever we are interested in the other person, this said, half the "problem" is solved. Then begin to work on learning how to convey your feelings in the manner you wish - boldy, funny, goofy, or a combo of everything.
Lessons & tips: Flirting should be something with your insignia - your swag. ;)
O and if it's ridding you of sleep etc, then it's no longer flirting - flirting should be fun, sexy and rewarding for you.
