Know each Texas Hold'em hand rank before you call or fold. See what beats what,...

https://tiny-wiki.win/index.php/Smallest_Straight_in_Poker:_A-2-3-4-5_and_Why_the_Ace_Counts_Low

Know each Texas Hold'em hand rank before you call or fold. See what beats what, then keep a printable cheat sheet by the table. A royal flush comes just 1 in 649,739 hands