What are the correct liturgical bows that the clergy and faithful expected to do in Catholic churches and while at mass?

**What are the correct liturgical bows that the clergy and faithful expected to do in Catholic churches and while at mass?** When I was younger, all Catholics that entered a Catholic church always genuflected towards the Blessed Sacrament, before going to their place and knelt down in prayer. At one time, priests always genuflected before entering the sanctuary. This would be true for readers and extraordinary ministers. Nowadays things seem to have all changed. Almost everyone seems to just do some sort of little head bowing, if they do anything all. There seems to be a lack of concrete liturgical rules gouverning external gestures at Catholic masses and in Catholic churches. Are there any liturgical rules concerning bowing in church and mass. I would be greatly interested in knowing what are the liturgical bows of the Extraordinary Form of the Mass (Mass of Pope St. Pius V) and the Ordinary Form of the Mass (Mass of Pope Paul VI).