Are the building and surrounds welcoming?
Is it well lit? - trip switches can make economic sense.
Is it warm?
Is there a brief (and free!) leaflet for finding a way around?
Does the leaflet include a brief message about Christianity?
Is all literature clear and welcoming (even for the visually impaired) – is the language of notices warm and welcoming?
Is the literature accessible for everybody?
Is there some token (a prayer card/bookmark) for people to take home by which they will recall their visit? Is it clear how a priest can be contacted?
In how many languages is there a welcome sign?
In how many languages is the literature for visitors?