My lo uses his sippy cup all during the day, but he has trouble tilting it up enough to drink from it. When he can't do it he holds it out for me and shouts until I tip it for him so he can get a drink. I did this for him when we first started using the cup months ago, but now he is 1 I think he should be able to do it himself, do you? He just won't tip it up, then we he can't drink from it he starts just chewing on the rubber spout bit and messing on with it.