Angels don't hide their light under a lampshade. When you think of an angel, usually the angel is coming to do something really serious - a life and death matter. There are as many angels as human beings. An angel knows God's love does not keep us from trials, but through them.
Angels are an express portion of our divinity.
They have a lot of light, infinite affection or compassion, they will come and be of real help to you. Angels are always hovering over this earth-planet. Angels take time to be quiet and listen to God. Angels should be invoked by the sincere seekers. Most of the time angels have to be invoked.