Talking Together = They Like You

People do NOT talk with people they hate. They don't usually talk with people that they care nothing about! So the only option left is that if you talk to this person, and they talk back to you, that they like you, at least a little!

If your question is if they like you ENOUGH, that is quite different. It is up to you to keep working on the connection, to slide them along that scale of like, to get closer to them. Talking is one sure way to get them liking you more and more!