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.
For instance, if you're a beginner, the Bow-Right for Violin is a huge help that will make it much easier to perfect your bowing technique. On the other hand, if you're a seasoned pro wanting to breathe new life into your favorite bow, the P&H Replacement Violin Horsehair Hank might be in order.