實地考察
and then have some body cold call "sell services".
no matter you "buy" or not? they are willing to teach you how to select.
Last Nov we also 實地考察, the lady teach us
select indoor, (less wind and rain)
4/F., (relatively less people select, more good choice)
select even number wall (good fung shui)
select the above eye level row (respect 先人)
don't select middle position (less sunshine and too busy when Ching Ming festival)
select the position where near the corridor