Mates at church

Hello everybody. I have been encouraging my school mates to come to mass with me for over 6 months now. Fortunately, they have agreed to come, I have been trying to introduce them into the Catholic Faith by having them come to Church. I am happy that they are actually coming to mass, its just every single time that we go, they make jokes, laugh, mock other people and in general not have a lot of respect for the other people. there is this one thing that has actually been getting worse under my skin a lot. there is this woman who comes to mass every single Sunday, she is older and has mental health issues, she usually stands up and raises her hands when the choir is singing, and for some reason, my friends genuinely think that this is the funniest thing they have ever seen, ( granted when i was first going I also found it funny ). But I am just tired of there antics, I don’t know what I should do, should I talk to them about this?