ruggles we don't use bribes yet. DS wouldn't 'get' it, and while we could probably work on it so he did, we don't need to. I'm holding that trick in reserve! 
justlooking my DS is the same. At home, a chatterbox. At nursery, says nothing. Robin said not to worry, it will come. He's more comfortable at home so more at ease to talk. At nursery, whilst not distressed, he's still anxious enough that he still keeps himself to himself. It's probably the same thing. She just needs a little extra time to generalise the new skills into school setting. Have you asked Robin?
I think I compartmentalise DSs challenges too. If you met him in the street, you wouldn't know he had any problems. 99% of dealing with him is just like dealing with any boy his age. His nursery is great, and have put lots of support in place to help him. That helps him now, day-to-day. We continue the salt, privately and nhs. We try and tick all the "conventional medicine" boxes, turn up for appointments, so we look like good parents, not questioning the nhs. Then behind the scenes, we do TH which will hopefully help in the longterm. DS is only 3 (nearly 4) so we haven't done any other therapies but I'm waiting until we get to the end of TH before I look into doing them though I've already researched them. Hopefully, we won't need to. I do think it's a bit bonkers that some consider things like TH alternative. Put the exercises to one side, and a lot of it is just common sense that we all should do. Not woo at all.
yuckythings (I love your name. No matter how tidy I'm being, there are always yucky things on the floor in here!) We started stairs in late Feb. DS is now very steady going up, one foot on each step. Coming back down is nearly there, but still a little wobbly. It feels like it has taken ages.