This is the 9713th most frequent Spanish word.
asustas
"You scare."
Here, 'asustas' is used in the present indicative tense to indicate the action of causing fear in others as a direct outcome of the behavior described in the sentence.
Si gritas así, asustas a los demás.
If you scream like that, you scare others.
'Asustas' in this sentence denotes the repeated action of scaring someone as caused by the subject's specific actions, emphasizing the effect in a personal context.
Cuando haces esas bromas, siempre me asustas un poco.
When you make those jokes, you always scare me a little.
The verb 'asustas' here expresses the act of possibly frightening others due to a specific cause, here used in a negative imperative form combined with a suggestion for caution.