1. Press R3 when highlighting Ami.
2. When you appeal, you get a certain amount of points for that section depending on your stats. Your job is to build up the highest amount of points for all sections (especially the judges that give out the most stars). Timing the appeal just at the right time gives you more points. Memory appeals evenly spread points for all sections (or reduce if you get a bad one) Judges lose interest as you appeal to them, but they can be restored through memory appeals.
3. Win an audition.
4. You can freely select a day off at the start of any day. This gives you and your idol a day off (obviously), giving her a boost in her tension if you need it.