formal – adj. requiring or using serious and proper clothes and manners
encounter – n. a meeting that is not planned or expected
strand – v. to cause (something, such as a boat or a sea animal) to become stuck on land — usually used as (be) stranded
animated – adj. produced by the creation of a series of drawings, pictures, etc., that are shown quickly one after another : produced through the process of animation
selfie – n. a picture that you take of yourself especially by using the camera on your smartphone
engagement – n. a promise to meet or be present at a particular place and time
gem – adj. excellent or admirable
crash – v. to go to (a party) without being invited