How to Sign "I Think"

To sign 'I think', form your dominant hand into a '1' handshape with your index finger extended. Bring the tip of your index finger to the side of your forehead and tap it lightly. Pair this motion with a thoughtful facial expression, such as slightly furrowed eyebrows, to clearly convey the act of pondering or having an opinion.

Examples Using "I Think" in a Sentence

1

I think it will rain today.

Sign 'I think' by tapping your forehead with your index finger, then sign 'rain' and 'today'. Use a slightly uncertain facial expression to show you are guessing.

2

I think you are right.

Start with the sign for 'I think', then point to the person you are talking to, and sign 'right'. Nod your head slightly to show agreement.

3

I need time to think.

Sign 'I', 'need', 'time', and then 'think'. For this context, you can hold your finger against your forehead a bit longer and look away slightly to show deep thought.

How to Sign "I Think"
To sign 'I think', form your dominant hand into a '1' handshape with your index finger extended. Bring the tip of your index finger to the side of your forehead and tap it lightly. Pair this motion with a thoughtful facial expression, such as slightly furrowed eyebrows, to clearly convey the act of pondering or having an opinion.
Visual Logic(Etymology)
This sign is highly iconic and intuitive. By pointing directly to the forehead, it visually references the brain and the mind, which is where thoughts and ideas are formed.
Signing Tips
Your facial expression is just as important as your hand movement. Furrow your eyebrows slightly or tilt your head to show that you are actively considering something or forming an opinion.
Common Mistakes
A common mistake is using a flat hand with all fingers extended instead of just the index finger. Using a flat hand changes the sign to 'know', which has a very different meaning!
Regional Variations
This sign is widely used and understood across the ASL community with minimal regional variation.
Examples Using "I Think" in a Sentence
1

I think it will rain today.

Sign 'I think' by tapping your forehead with your index finger, then sign 'rain' and 'today'. Use a slightly uncertain facial expression to show you are guessing.

2

I think you are right.

Start with the sign for 'I think', then point to the person you are talking to, and sign 'right'. Nod your head slightly to show agreement.

3

I need time to think.

Sign 'I', 'need', 'time', and then 'think'. For this context, you can hold your finger against your forehead a bit longer and look away slightly to show deep thought.

Frequently Asked Questions
Do I need to sign 'I' before signing 'think'?

In ASL, the pronoun 'I' is often implied when you are expressing your own opinion. You can simply sign 'think' with the appropriate facial expression, though pointing to yourself first is also perfectly fine if you want to emphasize it.

What is the difference between 'think' and 'know'?

The difference is in the handshape. 'Think' uses a '1' handshape (just the index finger extended), while 'know' uses a flat, open hand with the fingers kept together.

How many times should I tap my forehead?

A single, deliberate tap or a quick double tap is standard for 'I think'. If you tap repeatedly and slowly, it changes the meaning to 'thinking deeply' or 'pondering'.

ASL is a beautiful, expressive language. Practice regularly and have fun!