Guessy: Etiquette. Fashion. Religion. Favor trading & extent of trust. Social status. The attitudes, abilities and intentions of others. Taboos.

Asky: Monetary economic transactions. Contracts. Science. Engineering. Medicine. War. Philosophy class.

Guessy suggests small groups and the exclusion mechanisms to maintain them in a populous world. Asky just looks modern.

Things women and men tend to do in unmixed groups, respectively.

Other ideas?

Volunteer to help with the dishes, then ask whether you can take away the plate the chicken is sitting on. If nobody else claims it, it's yours.

Clear another plate before you touch the one with the chicken on it. Clear something else after. Clear your plate when you're done eating.

Don't do more work than your hosts. You're being helpful, not trying to work off the price of dinner.

I'd be confused. d4 is better and everyone knows it.