One of these :3

I’m a simple person, I use table flip all too often, yet not often enough.

(╯°□°)╯ ︵ ┻━┻

Boomer here. 👍

This one sees a lot of use lately (Fight Club):

A good Hell Yeah! is frequently warranted (Harley Quinn):

Of course surprised Pikachu is a classic but recently I like this remix:

And this is for when people invite me to make questionable decisions (Rick & Morty):

:)

Edit:
Oh, I didn’t read that you were looking for images.

Fixed :)

And my personal favorite,

I have two main ones, and I use them at work when people message me over teams.

Positive response - Terminator 2, he find a Minigun in the underground weapons cache and cracks a grin

https://media.tenor.com/BvScoISLSO4AAAAd/minigun-arnold.gif

Negative response - Terminator 2, a Terminator on the battlefield holding a big ass gun turns and looks at the cavers

https://i.makeagif.com/media/7-15-2015/f9JOyx.gif