Need some Casino playing tips? Video Poker and Slots?

me and my mum went to st louis riverboat this past weekend..my first time in a casino ..we were only there for about 2 hrs ..i put $20 and came out $60 ahead..mom didnt win anything..but i was wondering if theres any tips or tricks on playing the machines in the casion..i won the money playing deuces wild poker machine and got a 5 of a kind..mom liked playing slots..i won $40 on one machine for slots but thats it..are u more likely to come out a winner on slots or video poker machines ? opinions? tips?