Question

punctuation: place a question mark at the end of an interrogative sentence (question). ex.— is it true? place an exclamation point at the end of an exclamatory sentence (one showing strong emotion). place an exclamation point after an interjection (a word or phrase showing strong emotion). ex.— no! this isn’t happening! 2. yikes look out

Explanation:

"Yikes" is an interjection showing strong emotion and "Look out" is an exclamatory sentence showing strong emotion. According to punctuation rules, an exclamation point should be placed after an interjection and at the end of an exclamatory sentence.

Answer:

Yikes! Look out!