I have the same concern. My baby is 14 months. The following are what I have
been doing:
(1) bring her to the playground in the mall every weeked - This is the most
convenient way to get her socialized because there are always kids playing
there. Unlike playdates, you can plan around your own schedule.
(2) take her with me whenever I do shopping (groceries, clothes, toys, ...)
(3) take her to the playgound where I live (community playgound) - The
weather is cold these days, but this can be a great way to meet your
neighbors' kids. This can lead to future playdates.
(4) try to make friends with other mommies: reaching out, don't be shy
My little girl is very social now