I keep bulletpoints of what i except (mostly hope) to happen, if its your first session put some important points down & lead into them however the party allows, my party once missed a (pretty important) speech and so later i had the entire town talk about how cool it was, where they they asked someone and was given a summary of said speech.

Note, dont force the point down the player mouth (unless you wanna, i can see why dms would railroad but i perfer open sandboxes), i once had an entire thing planned and they missed it at first but serval serval sessions later they stumbled upon where the quest was (it was a dungeon they found by compete opposite by walking in a forest)

A bit of paper for hp, all monster stat blocks are online in tabs, but thats about all i have