You probably want to (do something).

This is a low-pressure way to tell someone what to do. You use this phrase when you're training someone, giving them directions, etc. but you don't want to seem too bossy.

Here are some examples:

You probably want to get into the left lane. You're going to need to turn soon.

You probably want to get going now. It's almost nine.

You can also use the future tense version:

You'll probably want to get a better pair of skis if you're going to be skiing a lot.

This phrase sounds friendly and casual.

check (a box on a form)

"Checking" a box on a form means putting a mark in it. The mark looks like ✓. Checking a box means that you're saying "yes" to whatever is written next to the box.

For example, on a form you may be asked to answer whether you are "Male" or "Female". You would "check 'Male'" if you are a man, and "check 'Female'" if you are a woman.

On online forms, clicking a box on a form usually causes the box to be checked.

Remember my ID

Login forms on websites often give you the option to "Remember my ID". If you check the box that says "Remember my ID", you won't have to type your ID again when you visit that website in the future.