I'm afraid of strangers. Few children appreciate being passed from lap to lap. Most prefer getting to know new people a little at a time and on their terms. Be wary of forcing your toddler to accept strangers and new baby-sitters immediately. I'm not a pet or a trained seal.
Some small children delight in showing off.
Others shrink away, risking a reprimand. If your child falls in the latter group, don't push it. Don't be embarrassed if or when I don't respond the way you hope I will. They aren't terrible kids. They're shy, frightened and unsure of themselves in new situations.