Questions & Answers about Jo porto una tovallola gran, un barret i unes ulleres a la motxilla.
Yes — Catalan usually does drop subject pronouns because the verb ending already shows who is doing the action.
So Porto una tovallola gran... is completely natural.
Adding jo gives a bit more emphasis or contrast, for example:
- Jo porto una tovallola, però ell no.
- I am carrying a towel, but he isn’t.
In a simple neutral sentence, both versions work, but without jo is often more typical.
Porto is the 1st person singular present tense of portar.
- portar = to carry / to bring / to wear
- porto = I carry / I’m carrying / I wear / I bring
Catalan portar is broader than English carry. Depending on context, it can mean:
- carrying something with you
- wearing something
- bringing something somewhere
In this sentence, it means I’m carrying / I have with me.