Mögen or Gern
When to use which. I know it's probably a dumb question but what is the difference.
Mögen is used for nouns while gern(e), which is an adverb, is used for verbs. Both gern and gerne are correct.
Sie mögen den Hund, aber ich mag die Katze. They like the dog, but I like the cat.
Sie liest gerne Geschichtsbücher. She likes to read history books.
Mogen is the verb. Or a conjugation of the verb to like depending...Gern is an adverb. Ich trinke gern Wein. I like drinking wine vs Ich mag Wein. I like Wine. In my case, both are true! :D But gern or gerne is basically a description of another action.
tl;dr: 'mögen' - you like (something), [(verb) + 'gern'] - you like performing the [verb]
Also: Ich mache das gern = I like to do that; I enjoy doing this/that (depending on context).
You have as well "gefallen", that is used mainly for aesthetic likes. It's a bit tricky for English speakers because it works like the spanish verb "gustar", in that what you like is the subject and you are the indirect object. For example, "I like cats" could be "Katzen gefallen mir" (in Spanish "me gustan los gatos"). "Mögen" works like the english verb "like", and "gern(e)" could be translated into English as "with pleasure".