Originally Posted by Cernunnos

Before formulating a game plan, you might want to have a conversation and determine if she's worth planning for. Some personality details would also be helpful in designing your approach. I've noticed that the typical female specimen will often drop a hint (sledgehammer) that she has a boyfriend, if indeed she has one.

As an alternative, you can e-stalk for information.

Actual advice: Scan the room and snag a seat by her side, then introduce yourself as the charming stud that you undoubtedly are. If she smiles and reciprocates, continue conversing, and before leaving, request her contact information.