What can I do to change my round face and make it look longer?

The only way to make a face look longer is through vertical elongation of the chin and/or jawline. Facial defatting of the cheeks and perioral region can have a complementary effect on facial lengthening but by itself will not help much. I would need to see pictures to determine if these type of procedures would be beneficial for your face.

  Hi, in female faces heart-shape is perceieved as the most feminine and attractive.  Round faces typically have excess facial fat that can be reduced using facial liposuction.  Further facial shaping of the cheeks and chin can be accomplished using a dermal filler (I prefer Perlane) or cheek and chin implants for a permanent enhancement.  Non-smiling front and side phgotos of your face would help in the evaluation.  You can e-mail these if you don't want to post them publically here.  Hope this helps.