Breakdown of Tienes que llevar la bufanda.
tener
to have
que
that (relative pronoun, conjunction)
llevar
to wear
la bufanda
the scarf
Questions & Answers about Tienes que llevar la bufanda.
Why do we need the word que after tienes?
Doesn't llevar usually mean "to take" or "to carry"?
Could I say tu bufanda if I specifically want to say "your scarf"?
Yes, you can say tu bufanda. But in Spanish, it is very common to just use the definite article (la, meaning "the") for clothing and body parts when the owner is obvious from the context. Since you are the one who has to wear it, la bufanda sounds perfectly natural.
How do we know it's "you" who has to wear the scarf if the word tú isn't in the sentence?
The verb tienes is conjugated for tú (informal "you"). Because the verb ending makes it clear exactly who the subject is, Spanish speakers usually drop the pronoun tú unless they want to add special emphasis.