is called focus! eye contact is meaningful in the dog’s world. you want it to be a positive link! "come/sit/eye focus" ...one treat. spread the training randomly throughout the day. so she learns that every single time she comes/sits/eye contact, she gets a treat! super yummy treat! wow, she is going to be at your heels (if she really likes food) all day long.
eventually you can shape her behavior, not only to come/sit, but to slide over to your side. you might have to nudge her side gently to lean against your leg. she might start accidentally offering that behavior. so build on it! to make it one smooth action, 