[Ali Imran]

U mean after prayer different behavior?

After prayer, we mingle with our brothers, greet them with the greetings taught by Jesus and the prophets before him, shake hands,  and enquire about each other's well being.

A Chinese Muslim is loved as a brother by the Malay Muslims.

Do you greet other Christians with the greetings taught by Jesus? No, you don't. Christians have forgotten all that Jesus taught.