How do you deliver an effective eulogy? big tip, I would not read a eulogy. After all, this is a presentation that's not about the most number of facts or bullet points. This is about emotion. And if you get upset or you cry little, that's okay. If ever there's a time to be emotional, it's at a funeral.
And when you're delivering a eulogy, however, you don't want to just get up there and blubber. You do want to be able to keep it together and to get through the points. Here's what I would recommend doing. Don't try to cover the person's entire life and go through every single accomplishment and where they went to college. At this stage, that's not what people care about. What you can do is help put a spotlight on a few of the traits and a few of the moments that really were special for this person and others in the audience.
Try to tell us stories about personal acts of kindness or whatever it is that really display the fundamental essence of what this person was about. Talk about your conversations with this person, perhaps problems that were overcome, be personal. And again, try to put a spotlight on the good this person did. You're not the official biographer. It's not your job to give point counterpoint in all sides. It's your job to put a spotlight on what was great about this person's life and what will be missed.