How do I go about socializing a 2 year old chihuahua/miniature pinscher mix?

Training classes will work. Also, take him to dog parks, he might be frightened at first but eventually he will get used to all of the dogs and people there. If you do take him to the dog park, keep an eye on him the first couple of times so he doesn't snap at others.

Every dog needs some type of training. The first class I ever took a dog to was https://tr.im/BIncI

It's a very basic kind of class. They will help you with your dog, and show you how to work with your dog at home.

They'll also answer any questions you have about your dog's particular problems and how to handle them. The most important thing in dog training is to be consistent and work with your dog at home on the lessons. The PetSmart class teaches sit, down, come, and the very basics every dog needs to know. They will also help socialize your dog. You are unhappy with an untrained dog, and believe it or not, the dog is actually unhappy to. You need to take your dog now, as the older he gets, the harder it will be to correct your dog's bad habits. Plus the classes are fun for you and your dog. My dog went from that first PetSmart class on to advanced obedience classes. You might also contact your local humane society. The one in my area offers obedience classes with a very good trainer at a reduced price.

go to puppy training classes. Socializing is better when you take it slow