A bit nervous. Okay, so what do I look for? I guess just do what everyone else does. Might be a bit behind.
No worries ... don't be nervous. If you feel comfortable doing so, kneel when the congregation kneels. You may remain seated if you'd rather. Not being Catholic, you aren't required to do what the Catholics are doing. And there are some things you shouldn't do ... like present yourself for communion ... but being Jewish, you'd probably not do that anyway.
But really just enjoy it. Don't get caught up in trying to do what others do. I think you'll find everyone is understanding about visitors to the church.
I would respectfully ask that you kneel during the Consecration of the bread and wine even though you are Jewish. I was at a Mass a couple of weeks ago and a Muslim delegation there (invited for some outreach thing) didn’t kneel at all. Out of charity I assumed it was because no one asked them to or told them it should be done.
Again, even though you don’t believe it’s Jesus after the words “this is my body” are said, I would humbly ask you show this respect. It will be when everyone else is kneeling so don’t worry about knowing when. Just do as everyone else is doing. Thank you for your understanding.
And you may go up for Communion if you wish (if you don’t want to stay in the pew as everyone else goes up) just fold your hands across your chest so the priest knows to only bless you and not offer you a Host. You don’t have to go up if you don’t want. There is no shame in staying in your seat either. It’s your choice. However to be clear, as you aren’t Catholic you aren’t to receive Communion.
Thank you.
And don’t be nervous. God wants you there.