Forgot to add an important trick to busy venues.How you populate your town also determines community traffic.By this meaning adding larger number in a few homes.A house with 6 members or seven for example if one of those sims vistis lot X the other household crew travels in tow.So make like a few households bigger with random sims could call it a Sorority house fill it with seven girls for example if girl A goes to the bar B,C,D,E,f, and G will show up there too or the majority anyway.
Have a mix of 3 couples in the same house 3 guys 3 girls and same thing if one shows up most likely all 6 will be at your club,bar,dance club,bistro whatever.
Go try it,it works
I am Craven and I approve this message :p
You do not need 60 extra sims in town just make like 3 houses with many sims in them.If you want to really tweak it personality drives them to certain destinations.Have a house of 6 bookworm nerds expect to see them at the library all hanging out.A bunch of jocks and cheerleaders you threw in a house with the athletic trait will be pulled to go to the gym.