Smile is the 2nd best thing you can do

Smile is the 2nd best thing you can do with your Lips.
What is first thing?
.
.
?
?
.
.
It is a KISS.

VN:F [1.9.22_1171]
Rating: 0.0/10 (0 votes cast)
VN:F [1.9.22_1171]
Rating: 0 (from 0 votes)
Scan QR code to view message on your Mobile Phone