Well you can choose replacement behaviors for the laughter. What can you do instead of laughing nervously? For example, nod, exhale slowly, or click a pen. Try to figure out what makes you laugh then go from there. You can also focus on something like you shoes, hands etc.
Recall a time when you recognized a false body image in the media. Describe the event and highlight one or more methods the media used to create the unrealistic depiction.