Lilly is a sweetheart! Nice itsy-bitsy lil bow! Welcome to YT...
You want her ears to stand? You have to trim the tips and the shave the leathers (but make sure you just trim and shave the upper 1/3 of the ear) to keep the weight off and make the ears to stand. If it is still not standing, you can tape the ears to stand...
I hope this link helps you to do it:
http://members.cox.net/jrogan/ears.html