Go to the Deposit tab of the rollup bridge. Input the amount of tokens you wish to bridge to L2, and click Deposit.
Deposit
Select all checkboxes and click Approve
Approve
A popup from your wallet will request your approval.
Confirm approval
Once the amount is approved, click the Initiate deposit.
Initiate deposit
Another popup from your wallet will request your confirmation.
Confirm deposit
The deposit will be initialized after you confirm the transaction, and shortly after, your tokens will be received on the L2. You can click the Activity button to track the depositing progress.