How to pick up the courage to start a conversation?

Hi this boy likes you,you like him.But you need to find a way to communicate that to one another.Next time you see him, smile be yourself and then make a suggestion.Such as would you like to come to the movies with me on wednesday.There is an element of risk where things could go either way,but by what you have said,he seems interested in you.And it is worth the risk {Nothing ventured,nothing gained}.If you did ask and were turned down,and we are talking worse case scenario here,at least you would know where you stand with this guy,and in time someone else would come along.I say jump in,and go for it,life is too short,to just think about it and then do nothing.Good luck Richard.