Try to be relaxed and be yourself, kapag time ng interview sagutin mo lang (or ng sponsor) ang tanong as straight to the point as possible..
Siguro ang suggestion ko dalasan nyo ang paguusap para magkakilanlan kayo sa isa't isa. Importante na makita or ma-determine ng officer na talagang may ugnayan kayo base sa mga sagot nyo sa mga tanong. Di mo naman kayang ma-anticipate kung anong itatanong..remember that they are highly qualified personnel (like a lawyer and police investigator) that's why every word counts...they are seasoned officers in that profession and they have huge responsibility to make sure that "we", migrating people in their land, will not cause them big trouble if they allow applicants to come and settle in their country.
Sa karanasan ko tinanong lang yung kumpare ko kung paano kami magkakilala..nag kwento na si kumpare...di na sumingit ang interviewer kasi andun na lahat ang kasagutan sa kwento nya..and the second question..willing ba daw si kumpare na tulungan ako to settle and to what extent ako kayang tulungan nya....sabi ni kumpare "by all means" food, house, transportation, and other basic needs..BUT pls note na di lang ganung kasimple yun...keep in mind that everytime na magcall sila ng applicant or sponsor for interview they are completely prepared and fully aware what to ask..nung sinabi ni kumpare na "lahat" itutulong nya sa akin..sa side ng interviewer, he is using not less than 2 computers at lahat ng information ng sponsor including his possessions, income, property, etc... including his wife's information. Logically kung sinabi ni kumpare na "lahat" tapos makikita ng interviewer na low income sya at yung kanyang asawa and walang naman silang bahay na sarili definitely di yun tutugma sa sagot nya and it will cause "cloud of doubts"...
Yung bayaw ni kumpare, pinakiusapan lang pumirma as second sponsor (kasi dati 2 sponsors pa ang kailangan) nung tinanong siya ang sagot nya di nya personal na kakilala yung applicant pero kakilala or pinsan ng asawa nya, then tinanong sya kung willing ba daw silang tulungan hanggang maka settle yung applicant ang sagot nya siempre straight "YES", dahil pumirma sya as sponsor handa syang tulungan, ayun nakalusot.. hope you get what I mean.
have a good day!