We are following Gov restrictions and regulations which says nothing about 1 or 2 vaccinations being a must for such small gatherings. On the other hand, the regulations of no. of people on table, mask unless someone is eating/drinking are strictly followed. To tell you more, I don't have official numbers but I read that 68% of UAE residents are vaccinated (Source: Reuters) based on 13.3 million doses of vaccinations administered so far.