What is the meaning of the idiom "Looking forward"?

The idiom "looking forward" means expecting with pleasure. It is used to express anticipation for something that is going to happen. For example, you might say "I'm looking forward to my vacation."

The other options are not correct. "Afraid of" means to be apprehensive or fearful of something. "Expecting a surprise" means to be uncertain of what is going to happen. "Being confident" means to be sure of oneself or one's abilities.