She looks adorable! Perhaps you can give some details about what you do know about her and we can offer any tips accordingly.
Eg. Her current diet, whether she is tame, wings clipped etc. And also things such as whether you already have bought a cage for her, or what design you are considering of getting.
If you are getting from a breeder, consider asking questions specifically about the bird's background and personality to get an idea of what sort of lifestyle she's used to as it may help you understand some aspects of her behavior [and expectations] later on. Such as what foods she has been fed, what time the lights go out and whether she gets sunlight exposure at certain hours, how often she has been handled if tame or semi-tame. You can always research about what you CAN do online or ask on this forum, but it may be difficult to get information on this particular bird after the handover.
Species Profile Lovebirds - Hari A quick overview of Lovebirds
Consider keeping notes to track her health. The example linked below for budgies is rather detailed, but it gives an idea of the considerations to keep in mind [though some more important than others].
http://hari.ca/wp-content/uploads/2015/05/Budgie-May-14-final-lr.pdf