[header] How to care for a saint bernard [title] Start training early. [step] Saint bernards are intelligent and eager to please, but they can also be stubborn and immature. Their massive size means that bad behaviors like jumping on people can have serious consequences, so it's important to start training while your saint is a manageably sized and pliable puppy. 
[substeps] You should also start socializing at a very young age. Take your new pup to the dog park and introduce it to all your friends and family in order to make them easygoing and friendly.