If a guy comes to your house for a group event and you guys watch a movie and he tells you to lay in his chest and he puts his arm around you and plays with your hair does he like you?

Yes, it sounds like he likely has an interest in you. His actions, such as inviting you to lay on his chest and playing with your hair, indicate a desire for intimacy and comfort. These behaviors often suggest he feels a connection and may be attracted to you. However, it's always best to communicate openly to understand his feelings more clearly.