Sign in the Zodiac associated with intelligence is Aquarius. They are not impressed by mushy words or overt displays of flirtation.
You can forget about using your charm or good looks to win them over.
They are responsible for their actions, which might make them hard to understand because they are a stable zodiac sign.
They have trust issues, therefore it makes sense that they would build up a wall.
Caps are perfect. They study potential mates' actions and favour rationality over emotion.
They are hard to get and impress. They look for ways to correct others due to their dictatorial nature.
A Sagittarius's spirit is perpetually restless. They aren't concerned with their feelings or experiences and just want to see the world.
They are friendly and outgoing, making you wonder if they are interested in you romantically or just as a friend.