Generally what we are doing it for google thats also apply in Bing. They are showing some different sites actually thatst good. so nothing specially for bing. Good content and backlinks work there too.
many have said that bing is like old google. throw shit load of backlinks, and you will get ranked on bing. one thing to note: if you operate like the old google with the purpose of wanting to get ranked on bing, you might jeopardize your google ranking. So suggestion is to concentrate your effort with what google accepts as ok practices and then let bing to catch up..... in other words, don't do anything that google does not like, so that you want to get ranked on bing. google is number 1 in search engines, whether you like it or not.
You've heard it before.. we all have. Focus on the engine that matters and you'll get residual ranking efforts from that work too. Prioritize Google and ranking on Bing will eventually come along as well.