When my DS was almost 2, I took him to a local drop in clinic for speech and communication issues. By that point, he'd said maybe 10 words, most of them one time only. He's never had any suspected hearing problems, and communicates in a similar way to your boy (taking our hands and placing them on his waist means he wants picking up, reaching up to a particular place in the kitchen means he wants a drink etc).
We got referred to an early communication workshop, and attended it when he was 2y 2m. The next day, the words started coming. We started to write down the words he was saying, but we stopped within a few weeks when he got to over 100 words! He's now almost 2y 4m, and he's amazing us with what he can say now.
I was dubious about the early communication workshop, but it worked wonders for us. If you get offered something similar, I'd definitely recommend it. If you don't, I can send you photos of the handout we got that day.
Message me if you'd like to chat. I know how it feels to want to poke some numpty in the eye when they say "ooooh, soon you'll miss the silence and want him to be quiet!". NO I WON'T. I love that he's talking now. I'm loving finding out more about what's going on in that beautiful head of his.
Sorry, got a bit ranty!
I hope you get useful assistance, and the silence is broken soon. :)