Local followers on Twitter?

Whats your strategy to increase local followers on Twitter? Currently all I can come up with is folllow/like/comment on tweets from people within that city/area. Any other suggestions would be greatly appreciated. Thanks

Instagram top post algorithm?

Different for locations and hashtags?

Its definitely based on a combination of # of likes and age. What about comments? I also noticed that if you change location of a post it can automatically go to top post of new location. Anyone else have any insights on how Instagram determines top posts?