A Robot Making Someone Smile

How can a robot make someone smiles? I've been thinking about this. It's silly thinking a robot can make someone happy, but, it's true. My robot is designed to make someone smile. My robot can, talk to people about anything, friend problems, relationships, family problems. Anything. I mostly want to make my family/friends smile. No one deserves to go through something alone, especially something that can take a mental toll on someone's whole life. Also, just everyone needs to smile and be happy!! My robot would have to be plugged in, and also it would take an iPhone charger. My robot is pink, and it has a little screen where it's, the “face” of the robot. Theres also a speaker and a volume button under the “face”. That is how I can make someone smile with a robot.