As an adjective excited

is having great enthusiasm.

As a verb excited

is .

As an adverb eagerly is

in an eager manner.

As nouns the difference between snapshot and introduction

is that snapshot is a photograph, especially one taken quickly or in a moment of opportunity while introduction is the act or process of introducing.

As a verb snapshot

is to take a snapshot of.

As a noun sparkle is

a little spark; a scintillation.

As a verb sparkle is

to emit sparks; to throw off ignited or incandescent particles; to shine as if throwing off sparks; to emit flashes of light; to scintillate; to twinkle; as, the blazing wood sparkles; the stars sparkle.

As a noun towel

is a cloth used for wiping, especially one used for drying anything wet, as a person after a bath.

As a verb towel

is to hit with a towel.

As an acronym dry is

(computing).

As a noun legend

is a story of unknown origin describing plausible but extraordinary past events.

As a verb legend

is (archaic|transitive) to tell or narrate; to recount.

As a pronoun ke is

who, whom.

As adjectives the difference between picky and enthusiastic

is that picky is fussy; particular; demanding to have things just right while enthusiastic is with zealous fervor; excited, motivated.

As a noun picky

is (informal) a picture.

As adjectives the difference between friendly and cautious

is that friendly is generally warm, approachable and easy to relate with in character while cautious is careful; using or exercising caution; tentative.

As an adverb friendly

is in a friendly manner, like a friend.

As a noun friendly

is a game which is of no consequence in terms of ranking, betting etc.

As adjectives the difference between concerned and unaware

is that concerned is showing concern while unaware is not aware or informed; lacking knowledge.

As a verb concerned

is past tense of concern.

As verbs the difference between strengthened and strengthening

is that strengthened is (strengthen) while strengthening is .

As a noun strengthening is

that to strengthen.

As adjectives the difference between compendious and comprehensive

is that compendious is containing a subset of words, succinctly described; abridged and summarized while comprehensive is broadly or completely covering; including a large proportion of something.

As a noun comprehensive is

a comprehensive school.