Maintain regular mowing and keep the cut height raised, especially in dry weather, to avoid stressing the grass. If necessary small clippings can be left on the lawn as these can provide up to 30% of the required nutrients. This should only be done during late spring and summer when decomposition is quick.
Keep the lawn clear of debris and if possible move furniture or play equipment around to different areas of the lawn.
Keep your eye on weeds but avoid application of herbicide in hot/dry weather.