If your paper is in the ECE area and the conference is an international conference, it's allowable for someone to present on your behalf. Make sure the person presenting knows what he/she is talking about though. I'm tired of going to international conferences and sitting through foreign speakers presenting on their colleagues' behalf.
Oh geeze, I wasn't even thinking about decisions until now. EE/Applied Math double major, one first author conference publication so far. Hopefully, BS->PhD... :3