Video slots are games of chance, essentially. A player doesn’t really influence the process of how slot combinations are landed.
So, the answer here is being always aware bonuses and extras, slot symbols, the rules of the chosen game, Pay Tables, and playing the game by the rules. You could also consider beginning with the lowest bets and play the chosen game in a trial mode for free before depositing real money.
The best jackpot Invisible Man promises to players is Jackpot. You have a chance to trigger it by hitting the best-paying combination: Hora Cranley, Mr Hall, Doctor.
The Scatters and Wilds, because of their bonus features, can also contribute to releasing the best payouts. Wilds and Scatters help make up a winning combination, multiply the successful results, activate free spins.