We did this, or at least aimed to.
The idea is that the baby will stand up, sit down, crawl about and all sorts of things and eventually lie down and settle themselves to sleep. I thought it would never ever happen with my DS who, like yours, used to stand up in the cot and often scream (or just chat to me!).
You can talk to them to try and get them to lie down or you can pat the cot mattress to try and encourage them to do it. You're not supposed to pick them up but at the start my DS would sometimes get overwhelmed with crying and then I would cuddle him and start again the next night.
So it took us a LOT longer than the 10 days or whatever the method says, but it got to a point where my baby would actually lie down himself in his cot at the start of the night. I'd then sit in the chair quietly until he fell asleep and leave the room.
I actually never bothered moving the chair away after that point 
but would sit in the chair next to his bed til he lay down, quietly tell him a little story or sing a song, and then leave - sometimes he'd be asleep I think, sometimes just getting there and he'd drop off after I was out of the room.
Aaaand that's where we still are and DS has gone from being an absolutely hellish sleeper at 10 months (waking up every hour after midnight etc) to now at 13 months, normally sleeping through from about 7pm to 6am. Now when I put him down in his cot, standing up, and say "shall I tell you a story?" he plonks his head down immediately by himself.
So I would say persevere. The whole point is that your baby learns to feel their tiredness themselves, get themselves from standing to sitting to lying down, and then they can do that again in the night when they wake up, too. I didn't think our baby would ever do it but he did!