1. Take Proper Care of Angela.
At the initial stages of the game, Angela is usually very young and tender. You need to feed her with milk using a baby bottle. When she grows up, find adult foods for her.
Brush her teeth at least 2 times a day. Also, give her a bath every day. These two tasks will make her happy, enabling you to earn gold coins and other bonuses.
Angela will be able to show facial expressions and feelings. Make use of these indicators to know what she wants or needs. Sometimes she will be able to take to you, making it easier to understand her.
When she gets tired, let her rest. You can put her to sleep by singing lullabies. Angela can sleep forever, so you need to set the time to ensure she gets only enough sleep.
Tip: Sometimes, let Angela sleep for fewer hours than normal to enable you gain unlimited speed boosts.