This is a pretty broad ?.For starters you should try to keep the wind in your favor and also try to be as scent free as possible.You can try rattling anlers together or using deer scents and maybe a cover scent to hind the human odor.If the deer are hitting the food plots maybe they are doing it after hours in the dark--the best time for me personally has been about the last 1/2 hour before dark to watch feeding areas.When the bucks are in rut you might try hunting a water source--they get thirsty from chasing does all day and night.Another thing to try would be a scent dripper--they start dripping after they heat up about 10 degrees--daytime.hope this helps.