Hands up is a fantastic trick that looks great. The dog is taught to sit back and hold both front paws up simultaneously. Easy to reinforce by offering the word hands up and a treat each time the dog manages to get both front paws off the ground. The pure position of this trick makes it look like it was really difficult to teach but if you reward with good timing early on then the dog will perfect his position with little effort from you.
Consistency is crucial. This may mean taking time off work to be there to take the pup outside every 20-30 minutes when they are awake. Crate training will also help the 'penny drop' as it teaches the pup to hold on until taken outside. Then, be sure to stay with the pup in the yard so you are there to reinforce how clever they are when they do go in the right place.
Don’t punish your dog if they pee inside. Regardless of all those old training ideas punishment isn’t a good deterrent for house training. Yelling at your dog after the fact just confuses them and makes them nervous around you. If you catch your did in the act you can try to get their attention & move them outdoors. If you’re successful & they continue going once you get outside praise them like crazy. Are dog head halters cruel?