Okay...here's an update.
I did go the RC Funeral Mass. I tried not to "pray" with them!
I certainly didn't sing along during the hymns - which were rather pretty, but, not what I would categorize as "church music". Of course the piano and drum set might have added to that interpretation.
I didn't give replies, however.....during the hand shake moment.....which was rather distracting.....I was frozen to my spot. Thankfully, I decided to stand in the back and there weren't many people around me. The only other person near me was my coworker who came late, and he was at the other end of the bench. So, here's what happened. He and I have been butting heads the last week....to the point that he was throwing things around and simply making my life miserable....all because I wouldn't give up my new cube to him. So, I took the opportunity to walk over to him and say "Even though I wouldn't give up my cube to you, I still wish you peace."...reached out and took his hand with a smile. He was lost...and could do nothing but shake my hand and smile. This broke the ice of a week's tenseness.
Other than that one good moment, the rest seemed odd. I did cross myself and pay attention to the Gospel reading and I did cross myself and say the Lord's prayer. However, the rest of it I just stood silently, battled a huge tension headache!
No disrespect to the RC's on this forum, but, the whole thing seemed a bit irreverent. First, I was put off by the altar just being in the open (like a stage almost) and the priest looking straight at me. When he raised his hands and prayed, it was almost as if he were praying to the audience. You know? There wasn't one icon (not even a statue!) There was one wooden crucifixion hanging from wires over the front....made Jesus look like he was out for a flight. Just odd...hanging there....in the middle of the air.
However, what I found discomfiting was that everyone had a right to march up to the altar. 5 family members of the deceased took a bottle of water, a bottle of wine, and some other stuff from a side table and marched up the middle in to the altar and handed the "offerings" to the priest, who then poured the wine, etc. into the chalice.
After consecrating the wafer and wine...he handed a wafer to each of 3 women who came up in to the altar...and then he gave one a chalice to drink from and the other...and the third (after taking a sip) was given a basket with wafers. These women, in addition to the priest, came and stood at the steps and passed out Holy Communion. EVERYONE went up (except me). Even my coworker who is a baptist...went up...and came back down the aisle snickering as he munched on what he called a "cookie".
It all seemed wrong to me.
The woman with the wafers had extra, so she went back to the altar table and shook them out into a larger basket before putting the basket to the side.
The whole thing just seemed too "casual"...I don't know.
Nothing was done with the man in the casket. No prayers were read over him, no wreath, no absolution, no nothing. He was almost overlooked...other than for the fact he was in the "way" and folks had to step around him.
I am glad I went, I saw....and I came running back home!
Thank you everyone for your assistance, comments and advice. At least I went with an idea of what to expect.