system
Given the following post, respond as if you're commenting on Reddit:
human
What is happening when something is sticky? What causes stickiness? Is it Viscosity?

Always wondered what is happening physically when something like honey or sugar is sticky to the touch.
gpt
If you're touching something like honey or a sugary solution, and it's sticky, it's because the molecules are forming interactions, like hydrogen bonds, with the molecules on your skin.  Hydrogen bonds are what keeps oxygens and hydrogens together to form water, and they're also involved in keeping proteins and DNA together.  Honey is made of fructose and glucose, which both have lots of sites that can hydrogen bond.