When Arabs express their admiration about something they will always follow it with “Mash Allah”. It’s a way to bless the thing or person they admired by mentioning God’s name on it so they don’t be accused of bad eye.
Believing in the misfortune that the evil eye may bring is an Islamic belief, but it also dates back to the Greek antiquity where the “eye” as a symbol appeared on drinking vessels as a way to ward off the black magic.
However, using protective talismans such as “The hand” or “Khamsa/five” is condemned by Islam and considered superstition since it’s only Allah who can prevent the evil from happening.