Distinguish Boeing and Airbus Aircraft from Each Other

A very quick look into the matter! Carefully look at the picture below:

The aircraft on the left is Airbus A330 and one on the right is Boeing 777. These two are very common aircraft and have typical features of their respective manufacturers.

Look at their tails and look at their cockpit windows. 
1) The tails of Airbus aircraft make a smooth curve with the fuselage while those in Boeing make a sharp angle with the fuselage. 

2) Similarly in the cockpit portion, the outer most windows in Airbus aircraft have diagonally cut upper edge as compared to Boeing aircraft where the outer most windows have a slight curve on lower side. 
Look at the pictures and see the difference! Comments are welcome!