In my free time I read a lot.
LEG-go: the double 'g' is pronounced with a slightly longer hold. 'Tempo' is TEM-po with stress on first syllable.
Use this to describe what you habitually do in your leisure time. It is suitable for both new acquaintances and friends. Pairs well with follow-up questions about the genre or author you prefer.
'Nel tempo libero' (in my free time) is a very common Italian phrase. The verb 'leggere' (to read) is a second-conjugation verb. 'Molto' here functions as an adverb meaning 'a lot' or 'much'.
Sono un gran lettore / una gran lettrice.
I am a big reader.
More emphatic, shows reading is a core identity
Leggo almeno un libro al mese.
I read at least one book a month.
Adds specificity and routine
Mi perdo tra i libri ogni sera.
I lose myself in books every evening.
More poetic and expressive
Italians often discuss books at social gatherings, and literary festivals ('fiere del libro') such as the Turin Book Fair are hugely popular. Mentioning Italian authors like Italo Calvino or Elena Ferrante can open warm conversations.