Questions & Answers about Chci se podívat do kalendáře.
In this sentence, "se" is a reflexive pronoun that is simply part of the verb podívat se.
- podívat se (na / do něčeho) = to have a look (at / in something), to take a look
- You normally use this verb with "se"; without it (podívat) it sounds incomplete or wrong in this meaning.
So you can think of podívat se as one unit, like an idiomatic verb “to have a look”.
You don’t translate "se" directly into English here; it’s just required by the Czech verb pattern.