Click an email's subject to open the email in the inbox. To exit an open email, click the left-facing arrow above the upper-left corner of the email. You can scroll through your inbox to view emails there, or you can click the search bar at the top of the page and then type in whatever you're searching for (e.g., a subject or a sender). If you want to select a group of emails, click the checkbox to the left of each email you want to select.  This is useful when moving or deleting large groups of emails all at once. To select an entire page of emails, click the checkbox above the top-left side of the top email. Select the emails you want to mark as read, then click the open envelope icon at the top of the inbox. Opening an email will also mark it as read. Archiving an email allows you to save the emails without having them in your inbox folder. To archive emails, select the emails in question, then click the downward-facing arrow icon at the top of the page. You can find archived emails by clicking the All Mail folder on the left side of the page, though you may have to scroll down (and/or click More) on the left-hand menu to find this option. To delete emails from your inbox, select the emails you want to delete, then click the "Trash" icon at the top of the window. Deleting emails from your inbox doesn't permanently delete them immediately—they'll move to the Trash folder where they'll remain for 30 days before being deleted automatically. Sometimes undesirable emails will find their way into your inbox. You can mark these emails as "spam" by selecting them and clicking the ! icon at the top of the inbox; doing so will both add the emails to the Spam folder and tell Gmail to add similar emails to the Spam folder in the future. You may have to mark emails from the same sender as "spam" a few times before the emails stop appearing in your inbox. If you want to start working on an email but don't have time to finish it, you can save it as a draft by waiting for the word "Saved" to appear in the lower-right side...

TL;DR in Indonesian:
Buka salah satu surel. Cari surel yang diinginkan. Pilih surel sesuai keperluan. Tandai surel sebagai telah dibaca. Arsipkan surel. Hapus surel. Tandai surel sebagai spam. Tambahkan draf.