How long have they been there? they might also be nervous with new surroundings.... plus your friend just got them so thats a lot of shuffling around. You said they are near your computer? its good to let them get used to your presence. you may just want to pull up a chair and sit next to the cage, talking to them quietly for a while (about 15 minutes) not even taking them out. If you do this often and they get used to you being there.... Do this same step but with the cage door open. Dont reach into the cage yet... Until youve just left it open for several sessions. then, put in your hand and feed them treats. its really up to them what treats you use... try and pic which one is there favorite. If you use crackers make sure they are not salted. THEN you move onto teaching step up... trying to get them onto your finger. Lovebirds that are in pairs will NOT bond very closely to the owner because they already have each other, But You can still get them onto your finger. The process of taming them can be a long one, but it is worth it. GOOD LUCK!