From our recent chat on this topic, I realise this is going to be a divisive one!
But in the build I got to play with, for my custom character, each race seemed to have a default +2 and +1 to different attributes, but this was configurable (it had to be a +2 and +1, though, not three +1s). So I was able to give my halfling +2 Dex, +1 Wis. I’m pretty sure, though not 100%, that this included humans, but didn’t have time to look through every race to see what they got in addition to their stat bonuses.
Very interesting. The obvious thing to give humans would be a feat.