Yes, of course!
"Example 2 - Arriving at the crematorium before the family:
Plan to arrive at the crematorium chapel at least ten to fifteen In any case whatever happens make sure you are there before the cortege arrives. minutes before the start of the service.
Make sure you have with you your script and any important notes you have made, your spectacles if you need them and also a bottle of water and a couple of small plastic cups or glasses.
When you arrive at the chapel there may already be people congregating, try not to get involved with heavy or lengthy conversations which are likely to be distracting.
There may be one or two ushers at the entrance to the chapel,< if so then go and say hello and introduce yourself to them, ask if things are running to schedule "
http://www.funeralhelper.org/how-to-officiate-a-funeral-exam...