Same as above, make it about your friend and nothing else. I recently went to a funeral of a really old guy who was always friendly to me at meetings, even when I was fading, I'm glad I did it.
The talk will make you mad, 4-5 minutes at most about the individual and the rest used to advertise the Borg
people may use it as an opportunity to preach to you as well which was annoying for me as there were many things I could of said in reply to ones telling me they missed me and I was welcome back anytime (yeah right!), but I kept my cool and just made it about my friend who had passed away, quite a liberating experience in the end, hope it goes well for you.