[bitL]

:prayinghands: is the same as :highfive: which gives the conversation a bit different meaning.

[airstrike]

That's possible but somewhat debatable... The sleeves are the same color and thumbs are on the same side (or absent), so it's more likely they are really praying / thanking hands

I would use the fist emoji to imply a fist bump if I wanted to express something similar to a high five