Crypt of the Everflame has been mentioned, and it's a good option.
Stuff to cover:
- Attacks & AC
- Skill checks
I tend to suggest that new players try Ranger for their first PC. It's a good class all around, but has some features that make it a bit easier for a new player:
1) It has a good BAB, and a d10 hit die, which makes it likely the player will hit (fun!) and live (dying is not fun usually).
2) Pathfinder is just awash in options; for a newbie, the vast selection of feats, archetypes, classes, and so on can be overwhelming. The Combat Style in Ranger nudges the player towards a particular type of build, and there's only a handful of styles, which makes the choice easier.
3) It has a pretty good number of skill points to spread around so they can learn about skills.
4) It gets a very limited amount of magic at level 4. Magic is hard, because it frequently breaks the normal rules. It's hard to use effectively without knowing the rest of the rules pretty well. So Ranger spells are a fairly gentle introduction to that.
That said, the player should play what they want, and if that means they jump in on the deep end with a multi-class rogue/druid like my last newbie, well, some people learn best through jumping in and struggling.