When I tell my daughter she’s done something wrong she will often apologize in a way where her body language and tone clearly demonstrates that while she may be saying words I want to hear she doesn’t actually believe them.
Same thing with my boys. When they fight I ask them to apologize to each other but their mumbled words of apology and stiff body language clearly unveil the fact that they do so only begrudgingly.
Half hearted. Forced. Only because I say so.
I’m like that with God at worship when He asks for all of me and I huddle in my seat with arms flacid at my sides, body stiff and sometimes not even singling.