It was a while ago when I read Teresa Woodward's article on being a teacher trainer.
I wouldn't call myself one, but I feel fortunate to be involved in a couple of teacher training initiatives by the school.
The way I approach this is of a bottom-up style - I see myself as someone who helps other teachers and has something to offer them, so that it makes their lives easier.
It's been a humbling experience because it makes me realise how much more I still need to learn. There's also the obvious - being able to demonstrate what I'm preaching!
(By Sod's law, I read an article on the BBC about how mispronouncing names is increasingly seen as an intentional offence. And one thing I need to learn is to pay greater attention to the spelling of names!)