Cali (almost 3) is very reactive to both people and dogs. We've been walking a lot lately and whenever we see a person she begins barking and lunging towards them. She is 100x worse towards other dogs. She is not necessarily aggressive in a mean way, but if you don't know her I suppose it could be misread as aggression. 4lbs of fury

It's more of an OMGOMGOMGOMG excited bark. I think it's the same with dogs, but when we've let her meet other dogs she gets all in their face barking and licking...and obviously that is not appreciated. She's basically aggressively friendly, haha!
For what it's worth, I take full responsibility for her behavior. My husband and myself are not very social people, therefore she is not a very socialized creature. That is one of the reasons we've been taking her on walks at parks where we will run into people and dogs lately.
Any advice on how to help her be less reactive?