Sink dripping - ideas on how to fix?

[SquashBandicoot]

Slow light drip coming from the smaller of the two sinks. Can I fix this or do I need a plumber?

If I can fix this, what do I need to type I to YouTube to see what to use/how to do it?

Thanks for the help!

Would help if I added pic

Where is the drip coming from? Check that the joints are tight.

Right at the top where the white bit ends and meets the start of the sink itself. Can I just tighten that bit by hand? It looks skewiff to me.

Just tighten by hand. Clockwise.

Edit to add.

If its the tapered part at the bottom of the sink, you might need to slacken off the bottom nut a little. Tighten the tapered part, then re-tighten the bottom nut.

How to Fix a Leaking Sink | Wickes.co.uk

That looks a bit like my bathroom basin which has been leaking recently. Do you have a pop-up plug? If so, just tighten the actual plug "lid" by turning it clockwise. This will tighten the seal underneath.

Good luck.

This is all very helpful, thanks all