Traditional news media face many serious concerns as their distribution channels are gradually being taken over by third parties (e.g., bloggers, citizen journalists, and news aggregators). If traditional media is to remain competitive, it needs to develop innovative strategies around these channels, to maximize audience engagement with the news it provides. In this paper, we focus on the issue of developing one such strategy for spreading news on Twitter. Using tweet corpora from two national news ecosystems – 1.7M tweets from 200 journalists in Ireland and 1.2M tweets from 364 journalists in the UK – and audience responses to these tweets, we develop predictive models to identify the features of journalists and news tweets that impact audience attention. These analyses reveal that different combinations of features influence audience engagement differentially from one news category to the next (e.g., sport versus business). Using these findings, we suggest a set of guidelines for journalists, designed to help them maximize engagement with the news they tweet. Finally, we discuss how such analyses can inform innovative dissemination strategies in digital media.