How do you keep from getting food in a new lip piercing?

A friend of mine got a tongue piercing at a professional and asked the same question. He said to wait about an hour or two and while you wait keep the ring in your piercing, because if its brand new with no ring in it, it will close faster than one you had for a while . So just wait about an hour or so with a ring in it. Then the pro said if the tongue is bleeding from when you pierced it first still or its swollen or whatever then you have to wait a little while. While you eat, take your piercing out since its new and the flesh of the tongue is still tender and you dont want to stretch it. Chew carefully and slowly . Hope i helped