Feel free to stay nearby or with them on the chancel steps. Talk about worship at home. Look for opportunities to relate the sermon or scripture lessons to something that is happening. Feel free to whisper instructions as you help the learn. Greet the children as well as adults, and be as intentional about knowing children's names as you are about adults' names.
Hand children the offering plate rather than passing it over their heads.
Pass attendance pads to children. See that a child has a children's bulletin. When children give visible leadership, respond to them as worship leaders - not as performers. Always laugh with children, not at them. Occasionally invite a child you know to sit with you during worship.