Real Game Puzzle

You know what to do! Solve it with tactical and logical analysis! This is one of those puzzles that will help those who are 1200-1500 rating and wishing to improve to higher ratings. This is a beginner-intermediate puzzle. It is slightly tricky, but happens quite often with inexperienced players. Tell me how long it took you to figure it out.

*Hint: Black just moved his b7 pawn to b5, endangering the white bishop. What can white do to put this game in his advantage?