Villager socializing range
The minecraft wiki states:
Occasionally, two villagers may stop, and turn to look at each other, in a behavior called socializing, in which they will stare at another villager for a few seconds at a time.
How long is the range of this interaction? How many blocks can at most be between the two villagers for this to occur?
Solution 1:
After seeing this question I had to test it, my experiment gave an answer of upto 8 blocks between 2 villagers. Hope this helps.