Yeh, I agree with everyone here... hand-holding is really nice. As for making out? I get put off seeing couples heavily making out in
any public place, let alone church!!
Personally, I don't feel convicted to behave any differently, affection-wise, at church than any other public place. God is everywhere. People are everywhere. I don't think we should have separate rule-books for different places. Obviously, I understand church is particularly a place where you need to show some respect. But wherever you go, you are living a Christian example. So personally, if I'm not comfortable doing something affectionate at church, I should ask myself why, and if it would
really be appropriate anywhere else.
Just my POV, based on what I'm comfortable with for me