The Local Way to Say It
¡Ojo! When you're strolling through Malasaña and want to share your thoughts on that delicious tapa or the latest indie band, you'll hear Madrileños using parecer all the time. It's how we express opinions naturally, saying what "seems" to us. Forget overly formal declarations; this is the casual, everyday way to give your take. For example, if your friend asks about a new place, you might say, "Me parece bien" (It seems good to me), or if a movie wasn't quite your thing, "No me parece muy interesante" (It doesn't seem very interesting to me). You might even ask a friend, "¿Qué te parece mi idea?" (What do you think of my idea? / What does my idea seem like to you?). It's about personal perception, not objective fact.The 'Grammar Math'
Think of parecer like this:(A mí) me / (A ti) te / (A él/ella/usted) le / (A nosotros/as) nos / (A vosotros/as) os / (A ellos/ellas/ustedes) les + parece (singular) / parecen (plural) + [the thing being described]
The key is that parecer always agrees with the thing being described, not the person giving the opinion. So, if you're talking about one thing, you use parece. If you're talking about multiple things, you use parecen.
Example:
La película me parece buena. (The movie seems good to me.)
Las ideas nos parecen interesantes. (The ideas seem interesting to us.)
The person is indirect, the thing is the subject! It's like saying "It seems (to me) good."