Disposition not increased to rank 1?

[F****** S******]

1. Very early in game, i try to talk to heodam.
2. I see some answer contain passion, clever, etc.
3. Choose some answer, tutorial message pop up and said i get disposition
4. Lack explanation, i check wiki/googling, said i need 1 disposition answer for 1st disposition rank, and include location to see the rank on character screen.
5. I check my screen/reputation, its "none", when i should get 2 different disposition from heodam

[Du-Vu]

You got one "point" of disposition, which aren't displayed, and you need several points before you gain a rank, basically. The dispositions only go up to rank 4, iirc. You'll probably start hitting Rank 1 or 2 in the first town after the prologue if you're somewhat consistent with what dispositions you choose.

[D'amarr from Darshiva]

The question is vague.

How many points you gain for disposition based choices is explained here:
--> https://pillarsofeternity.fandom.com/wiki/Disposition#Disposition_gain

[Baldurs_Gate_2]

It can get up to 4, but only up to 3 works for bonus (paladin and priest). The 4 is like, if you receive a opposite disposition to benelovent --> cruel, you go down to 3 and because that is the max for paladin to receive a bonus on his defensive stat, you won't lose that.