Vietato = Forbidden
appoggiare = to lean
biciclette = bicycles
Nor a bum-friendly one either!
Vietato = Forbidden
sedersi = to sit (it is a reflexive verb so has -si on the end)
sul muretto = on the wall
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il muro is a wall. The ending -etto tells you that it is a small or low wall.
una birra = beer, una birretta is a small beer.