Could you hang a mirror on the side of her cot, so she can chat to the girl in the mirror instead?
Could you fix up a curtain across the room so you can't actually be seen? Think four poster!
The only way we could get our son to sleep (by day) at this stage was to use his walking harness & actually fix him horizontally,if he could sit up, he did. If he couldn't, he slept.
The best bit of advice I was given (covering everything!) was "Remember,it only lasts 6 weeks" and it proved very true,very often.
Good luck.