To be honest though there are 2 mods great for any community lot.One Is just a tiny ivy plant can place as many as you want it creates a generic role and real sims visit every day every hour it is open if you want.Have a bar for example name the NPC role 1 "Barfly" role 2 "Town drunk" role 3 "Local" etc.They are real sims and not mannequins and show up in random clothes.Super easy to setup after placing the ivy decor your lots won't SEEM full they WILL be full.
Here you go is easy mod to use and setup
http://virtualartisan.blogspot.com/2012/03/downtown-role-anysim-ivy.html
Also generic role desk or marker,easy to use too
http://modthesims.info/d/559243
I reccomend the ivy