It will feel like some one is pushing on your teeth. The brackets stick out a bit from your teeth making it feel like you have a full mouth of metal, big lips and your bracket may rub against your lips feeling again like a metal file.
While some breeds may be more suitable than others for a beginner rider, there are always exceptions to the rule. Quarter Horses often make great beginner horses because of their even temperament, but some can be quite hot or energetic for a beginner.
A handsome liver chestnut gelding who loved to play in his pasture at the Remus Memorial Horse Sanctuary near Ingatestone, Essex, England, Shayne was believed to be the world's oldest living horse at 51 years old.