Wearing a tallis?

[Director Michael]

Yes, but the optional observances may not be done by Gentiles in the manner of a religious obligation (as if they were religious commandments).

See https://asknoah.org/faq/righteous-traditions

Also see the discussion in "The Divine Code, Volume 1," Chapter 3, regarding:

- permissable Torah study
- circumcision
- marriage
- proper charity (including tithing) and acts of kindness
- returning lost objects
- prayer to G-d
- honoring parents
- honoring the elderly and the Sages
- sending away a wild mother bird before taking its chicks or eggs
- not hating others
- not taking revenge or bearing a grudge
- any other commandment in which Jews are obligated or prohibited that is between people, or between people and G-d, that has a reason and a logical benefit for a person or society

The Rebbe includes mentioning a teaching in the name of its author.

"Rokeakh" includes inviting guests and escorting them when they leave.