It is not easy to give feedback to the others... especially students...
you have to be positive, and constructively critical... and patient...
In general I did fine today with the help of my lovely colleagues, well, couple of feedbacks on my performance there:
'don't talk too fast' - when I gets nervious, I start to talk fast like hell... pause with questions like 'do you understand?' or 'you know what I mean?' help to give other people some time to *think* what I just said... God... I sometimes talk faster than I think... scary,isn't it?
'dont sit too close to others, leave them personal space' - I obviously dont have a issue with personal space, which... then cause trouble to others... I get to close to them -- damn it... too eager to show that I am friendly... I gotta be a bit teacher here... right!
'sit face-to-face to the people you talk to, so that you can see their reactions' -- very good one, and solve the problem of getting to close to them... will do that!
