expert tips on drawing tarot cards:
 
take your time
There's no rush. Take your time and you'll find your tarot readings are better every time. 
think about the question
As you select each card keep thinking about your question. If you let your mind wander at this time your reading won't be as successful. 
wait for a "pull"
Experts describe the sensation of a "pull" when considering certain tarot cards. You may find yourself 'pulled' specifically to certain cards in the deck -- with practice this sensation will grow more powerful.