Good looking liquid?

I’m trying to make a glass vial full of liquid, but it’s not going well, I can’t get the liquid to look… like liquid. Right now it’s just terrible. It looks very flat and uninteresting.

Here’s my simple material settings.

I would make sure to turn on ‘trashad’ ( transparent shadows ) for the liquid, and anything near it. also, the IOR for water is about 1.33. Allthough I don’t really understand fresnel myself, I don’t think you need it for this. If it’s an opaque liquid, like milk, use sss. Other than that, it’s hard to say without seeing the material rendered.