What to do before Finger printing process?

Finger printing the process that ensures that person is free of crime based on report from FBI is an essential part of GC process. As soon as you get your receipt number from USCIS the next notice is the FP notice that gives details on finger print appointment. Here are general steps to follow during finger print appointment
1) Switch off your cell phones
2) Make it early before your appointment time
3) Call FBI the evening FP is complete and make sure that information is sent to USCIS
4) If it a second time FP attend without skipping it

5) As the finger print involves thumb impression make it a point to avoid sharp tools few days before FP process