The baby or child shy, scared him a lot of situations and new people, before deciding to participate in a group activity remain on the sidelines for a while watching and waiting. If you like it then they have access.
This type of babies if they are forced to try something new, resist and when presented with an unknown person, literally stick to the skirts of the mother. For those parents who want to foster independence and sociability in their children, this behavior can be very frustrating. But if we force or ridicule, all we get is that our little child feel even more insecure.
In these cases the best solution is to allow the child to go at their own pace, giving the necessary time to adapt to new situations, leaving you to hold our hand at times when you need support from their parents.
If you are at the height of circumstance, others will be less prone to ridicule the child and this may acquire the security that you need. Anyway, if your child behaving shyly continues for a long time, check with your pediatrician, and may provide the necessary information according to the personality of your child.