My cousins kids have very large families and are always being passed around between cousins/aunts/uncles/friends/etc, and the LOs are completely fine with it. However, today I was at a family function with a different side of the family and a cousin's baby would not go to anyone but his dad (mom wasn't there - they're divorced). I think it may be because they're a smaller family and the LO hasn't been exposed to as many people.

Have any of you intentionally tried to help your LO be more accepting of going to others, even if he/she doesn't "know" them (like cousins that aren't around every single week)?