A gerund phrase will begin with a gerund, an ing word, and will include other modifiers and/or objects. Gerund phrases always function as nouns, so they will be subjects, subject complements, or objects in the sentence.
1) Eating ice cream on a windy day can be a messy experience if you have long, untamed hair.
2) Eating blueberries for breakfast.
3) Eating a banana
4) Walking in the rain
5) Getting a promotion