Snapchat always alerts someone when you screenshot their Snap, but there are ways you can get around that.
One way is to go to the “Add Friends” page. Here, scroll down to the Quick Add section, and you can see that Snapchat will suggest users here and often shows an approximate number like “3+ Mutual ...
Results that may be inaccessible to you are currently showing.
Hide inaccessible results
Feedback