r/ACForAdults:

u/jaxom07

Nice! I gift my villagers iron door plates daily, they sell for a lot and it always gets the most friendship points
u/jaxom07

I kick out everyone after I get their picture EXCEPT Drago & Phoebe.
u/jaxom07

https://yuexr.github.io/acnh/friendship.html
u/jaxom07

You can actually check with Katrina over in Harvs island. Shell give you a vague idea of how good of friends you are with one villager/per day. Then if youre not best friends with them shell offer a blessing which adds one point to the total. I have a link somewhere of all the ins and outs of developing friendships in the game. Ill try and find it.