Shots!! What exactly are you all shotting?!

I am a trip drinker, meaning I only drink on like vacation trips. I recently decided to indulge in alcoholic drinks/beverages. So I am learning what I like. And trying to learn about alcohol. I grew up in Germany 🇩🇪 and understand and drank beer 🍺 and wines well before 21 as European drinking culture starts early. I have an infinity of Tequila-sweet tequila and choice type of bottles I collect usual artsy bottles…another post.

I see people drinking taking shots on reality shows and at bars/clubs etc.

What alcohol are people shotting?