You're probably right! Wait until her date is away from the table and then march up to her as Gaston might approach Belle -- that man had swagger, and so do you.
2. Bring an assortment of wigs
In all likeliness, the hotter the girl you approach, the more unintelligent she will be. You don't want to frighten her when, in truth, you've come to rescue her. To ease her into conversation, wear a wig that matches the hair of her date.
This way, she will momentarily think that you and her date are one in the same, and won't be nervous. Once you've bundled her into your web of charm and infinite valor, whip the wig off wildly and scream, "I AM NOT YOUR DATE! WILL YOU BE MY LADY LOVER?!" Just like Sex Panther, 60% of the time this line works every time.
3. Acknowledge the awkwardness
You'll want to try this quirky verbal trick called "Acknowledge the Awkwardness." Own up to the fact that this is an unusual circumstance for you. Tell this dear maiden that you only came to this bar to drink alone, cry, and call your mother -- but that you saw her looking so rare and ready to fornicate that you had no choice but to try to woo her.