Get the puck to the offensive zone near the blue line. Hold Deflection/Short Block while shooting. One of your players will skate to the front of the net and deflect the puck in.
Easy goals
If you are skating with someone that has a very high rank in the Deke category such as Joe Sakic, Kariya, etc., once you get past the opposition's blue line, press Down, then press Auto Deke. Immediately after he is done with the Deke, press Shoot. You will score about 95% of the time.
Use NHL player's face and picture for a created player
When entering a name for a created player, use an existing NHL player's name. A prompt will confirm that the player is in the database and then ask if you want to create a player like him. Select "Yes" and you will receive his face type and picture for you player. You can then enter any name and stats once you have finished.