Our 6 1/2 month old starting eating cereal a few weeks ago. He wasn't "good" at eating (very messy and his tongue seemed to get in the way a bit), but loved it and would almost jump towards the spoon. However, last week he refused to open his mouth at all. We tried for a few days and then gave it a rest and have started trying again. We've tried different cereals and just bananas (which he used to love), tried at different times of the day, tried in our laps, in his high chair, in his Bumbo chair, we've tried at different times of the day, after a breastfeed and before. Nothing seems to work. Any ideas??