Chou Chee at Mac App Store analyse

Sometimes in our life, we need to say something to the people around us. For example: healthy old people may want to tell polite young people that No need to give up your seat; when you are busy working, you may want to tell others do not disturb; when you meet someone at the station, you may need to tell the guest you don’t know I am here... Chou Chee, hope Chou Chee ~^_^