Giggs was reacting to the alleged coin throwing incident involving Rio Ferdinand.
Ferdinand has been criticised for celebrating Robin van Persie's winner in front of the home fans, but Giggs feels the way the supporters are segregated and the importance of the goal makes it almost impossible not to do so.
"First of all it's tough at City because their hardcore supporters are right next to our supporters," he said.
"When they are so close together how can you determine whether you just celebrating in front of United fans?
"When you score a goal like that you don't have control of yourself. As a player you want to celebrate.
"If you just scored that goal and walked back to the centre circle, United fans would want to know 'what's going on there?'. The manager would be like 'what you doing? Celebrate'.
"We have stamped it out going into the crowd, you get an instant booking.
"You have still got to enjoy that sort of experience, but obviously the players and fans can't go too far."