Learn Hardcore Swedish: Jag dricker kaffe.

Jag is pronounced roughly /yahg/ (the 'g' at the end is often softened).
dricker is pronounced /DRICK-er/ (roll the 'r' slightly).
kaffe is pronounced /KAH-feh/ or /KA-fe/ depending on dialect.

Why is the verb dricker used for both I drink and he drinks?

In Swedish, there is only one present tense form of a verb for all subjects. So jag dricker (I drink), du dricker (you drink), and han dricker (he drinks) all use dricker.

Can I omit Jag in conversational Swedish, like in Spanish or Italian?

No, generally you don’t omit the subject pronoun in Swedish. It’s almost always required, regardless of context.

Is the Swedish present tense used similarly to English to describe both current and habitual actions?

Yes, the single present tense in Swedish covers both ongoing actions (I am drinking) and habitual actions (I drink). Context usually clarifies which meaning is intended.

What are some tips for rolling the 'r' in dricker?

Practice making a brief roll or tap with the tongue behind the upper teeth and keep it light. If you struggle, you can use a more English-like 'r' as a starting point, but a soft roll is closer to native Swedish pronunciation.