Can guys tell when girls like them?

I mean if a girl has shown a guy the following signs would he think she likes him or nothing of it?
1- Locking eyes regularly

2. intense eye contact regularly

3. Asking for his help or advice a fair bit

4. Seeking to converse with him a lot

5. Asking to join his social media and liking some of his pics.

would you too much or not really?

Can guys tell when girls like them?
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