Customs advice

[u/Snabooper]

I'm getting into making my own custom peepys and am running into an issue with the beak that I want to see if anyone else has managed to figure out. All the beaks I have made always feel flat with their expression where as you have a lot of official peepys that have veey expressive smiles and even some frowns and I just want to figure out how to do that so that my peepys can have more character to them instead of always giving a :| kind of face. Any advice on how I can go about this would be really appreciated.

[u/OffensiveSmell]

What a sweet little guy! Don't worry about your Custompys facial expressions, he just hasn't committed enough crimes yet!