In my opinion we dont/cant really understand what a snake is thinking/feeling. So how do we know if he/she wants to be held or likes to be with us? All we can really do is judge their actions. If they hiss they probably dont want to be played with, if they are roaming they may want food, if they are always in their warm/cool spot they probably need more/less heat etc. Its hard to tell what snakes, or any animal except maybe humans, are feeling you just have to go by what kind of actions or reactions they present to us. Again my opinion.