strategic games on today, how do you buy without exciting the...

strategic games on today, how do you buy without exciting the seller into raising prices, show no interest, withdraw any sign of interest on the buy side. ooops check out the trades though, these are strategic amounts, seems to be some buying without wanting to raise any attention or excitement....... i think it was @wingedwarrior who said.... watch the pros at work accumulating whilst keeping the SP under control.......all observations IMHO