Vote for one of the favourites to win. If you dont live in a participating countries then you can vote in The Rest of the World group introduced last year. That voting group counts as one country.
https://eurovision.tv/vote
Each country hands out 1-8, 10 and 12 points. The act with the most votes in a country get 12 points, the second most popular act get 10 points and so forth.
The top acts in the betting:
https://gamefaqs.gamespot.com/a/forum/0/0935324b.jpg
Croatia winning is the most likely scenario so support their act if you really wanna resist Israel.
"BalanceLost has a steam-powered PS2 because Sweden don't have electric" - dimeanatrix