ok ill break it down like I have in my tamagotchi binder...a are miss is adzactly what
tamageff had explained above...but to add to his decription...to successfully get a care miss, when your character needs something it will beep and have the icon light up in the bottom right hand corner (face icon),and wil be calling your name in a speech bubble. you muct ignore it completely...it will take approximately 15 mins for this character to stop calling you.but watch carefully cause ive had my character get sick sometimes and need medication (and you don't want to ignore that cause the character can die if not answered.)when the character has finally stopped calling you then you have successfully obtained 1 care miss. in the above chart shows the caremiss's that you need to get particular characters for ex: patitchi she needs 3-7 care misses so you need to make sure she has the amount shown...but at the same time there is a little icon which shows a fork and knife by her name. that is a personality trait . I have a link to a graph below that I use I hope this helps...
https://www.facebook.com/photo.php?fbid=441043002641111&set=pb.441017875976957.-2207520000.1369073830.&type=3&theater
oh and p.s- if you ever have any other questions and need a full info list on a tamagotchi of any kind I have a binder that Ive been working on,it has over 300 pages of information.i can send you a scan of some info or even just give you any info you need <3