Dear Readie,
1-2. Wear the engagement ring for the duration.
3. If a wedding, the groom goes first. If another situation, the man goes first unless there is some kind of attendant such as an usher, maitre d’,, waiter, then the woman follows the attendant and the man follows.
4. A woman is presented to a man, a younger person to an older person. Mr. Bell, may I introduce the legacy squatter.
5. Yes.