This will probably sound stupid to you lot because you will all know but when you get the ones that are like stuck on your nail (dont know what they are called lol)
do you go with short nails or long ones
I will just assume you are meaning a full set of nail enhancements...whether it be tips and overlay or sculpts, the length depends on the lifestyle of the client.
If she uses her fingers a lot in her work, typing , gardening etc then shorter squarer nails are advisable. If she has long nail beds herself and could cope with a longer length of enhancemernt then that could be recommended.
I see you are only training at the moment but this should be one of the first things covered in your course coming under
Consultation, a very important part of your customer service.
Good luck with your course.