Christ is in our midst!!
Francis W.,
You ask
When in Rome should I do is the Romans do I guess is the question.
I've been in the same situation as a funeral director. I am tasked by my State Board to learn the customs of all those I serve. So wherever I am, I try to fit in out of respect for the people in another church than my own. In an Orthodox parish, I might seek a seat, but that's because I have physical issues with my legs.
That said, in a Latin parish--of which I am a member--a profound bow is the same as a genuflection. In fact, last year while I was on retreat, a priest told us that this was acceptable in any Latin parish. He backed it up by saying he had had two knee replacements and was not about to jeopardize his new knees by genuflecting. Receiving the Lord--that may vary by diocese. Many that I have been in mandate standing for reception. I myself have been under doctor's orders NOT to genuflect or kneel since 1993 after a severe work-related accident. I can only squat if I want to reach a lower level. My right leg has a bad habit of coming out of the hip socket as a result of a work-related accident that year. I have had a regular regimen to keep what are left of my stretched muscles and ligaments in place, but every once in awhile I can feel it move so I am very careful. My example of profound bow has encouraged many of my fellow parishioners with bad legs and bad knees to do the same thing.
Standing all through the liturgy would make you stand out. I recommend blending in; that's my practice and advice.
Bob