Get three identical boxes. Put an object in one that the dog can smell but not see. Tell them Find (or Search or Seek or a word that makes sense). Teach them to sit or alert you to the correct box.
Hide a favorite object or something scented that they will go for in sight at nose height. Give the search word. When they get close, say Yes. When they find it make them either Sit, which will become their alert signal or say Take to give permission to pick it up. Once they know how to find it start hiding things in more difficult places, like under couch cushions or behind something.
Get a food dispenser toy. Or a Kong. Put some of their regular food or regular treats inside. Let them find out hw to get it out.
Teach them to bring you objects, like shoes, without chewing them up, teach them to drop it or release to your hand.
Teach direction. Right, left, back. I use Place boxes, but you can use dog cushions or even small throw rugs. I move my hand the direction I want them to go, and say the associated word. You can hold a toy in your hand to direct them with a toy.
Teach Place or distance down. I start out standing next to the Place spot, then gradually move away. Now mine will go out and Place at a distance. It works inside or outside. Place is not a stay. You don’t want your dog to think they can’t ever leave a Place spot, especially if you forget to release them. It’s mostly for when you want them out of your way for a while or you need them to calm down. Place also means Calm.