The answer upstairs is probably to look at the notes on your picture? Also translated? Some are not very accurate. Let me correct it.

The first one in the first row? The forefinger and middle finger cross? Meaning to form a cross? It basically means to pray? Another situation is when you are lying? Put your hand where others can't see it and make this gesture? It means asking God to forgive you for lying.

The second one in the second row? What do you mean, upstairs? Does the picture really mean the end? But it actually means getting married? Because it is a hand with a ring finger? What you're trying to say is that it's over when you get married? Being single is king.

The one in the middle of the third row? I think it means geek. Actually, it probably means otaku, right? This gesture comes from Star Trek.

The following figure

In America? Star Trek fans are generally regarded as the representatives of otaku and otaku (although this view is not accurate).