The fact that the aliens have brought up a drawing about a human drawing of a human crying yet didn’t not have the text in a human language would tell me a few things.

1. They have clearly studied us.
2. They realize that crying is something significant
3. Since they have included text, but no human language, the picture is either an internal slide with the text not meant for you, or they have not yet understood our language.

The safest course of action would probably be to raise your hands, flat palm out cross them over in a gesture of “no”, and fold your arms of your chest while shaking your head, and taking a few steps back.

We have no idea of their language, and have to assume that they have studied human body language so that would probably indicate that we are unhappy with the picture.

What would happen next is hard to day, we don’t know their motivation for trying to communicate with us in that way, we can’t ascribe human intentions to their actions as they are not human.