You appear your usual self; dark, mystic, sexy – still acknowledging those around you that "knows you". In that way she will see that you’re an ‘interesting character’ yet capeable in social situations.
When you’ve aroused her interest, and she returns your looks, avoid all eyecontact.
Then when you’re finally ready to give her that final thrust that will sweep her off her feet into a romantic tragedy with only a single, social survivor, she will not even look at you.
*sigh*… It’s weekend soon. Great!